Date: Aug.26~28, 2025 Venue: Shenzhen Convention & Exhibition Center Fuzetec Booth: 1A31 https://www.elexcon.com/

Date: Sep.10~12, 2025 Venue: Taipei Nangang Exhibition Center, Hall 1&2 Fuzetec Booth: TaiNEX1 #J3353

Introduction In the era of climate change and environmental sustainability, Fuzetec is proud to announce a significant milestone in our journey towards a greener future. We have successfully integrated green electricity into our operations, with 25% of our total electricity consumption now sourced from renewable energy. This marks a pivotal step in our commitment to sustainability and our ultimate goal of achieving RE100. This article explores Fuzetec's green energy policy, our progress, and the roadmap to reaching 100% renewable energy. Fuzetec's Green Energy Policy At Fuzetec, we believe that sustainable practices are not only beneficial for the environment but also for our business and stakeholders. Our green energy policy is rooted in the following principles: Sustainable Sourcing: We prioritize the procurement of electricity from renewable sources such as solar, wind, and hydroelectric power. Energy Efficiency: Implementing energy-efficient practices and technologies across our operations to reduce overall energy consumption. Stakeholder Engagement: Collaborating with stakeholders, including suppliers, customers, and employees, to promote and support renewable energy initiatives. Continuous Improvement: Regularly reviewing and enhancing our green energy strategies to align with evolving sustainability standards and technological advancements. Achieving 25% Green Electricity Our recent achievement of sourcing 25% of our total electricity consumption from renewable sources is a testament to our commitment and efforts. Here’s how we accomplished this: Strategic Partnerships: We partnered with leading renewable energy providers to secure a reliable supply of green electricity. Investment in Renewable Projects: Investing in renewable energy projects, including solar panels at our new facilities. Energy Management Systems: Implementing advanced energy management systems to monitor and optimize our energy usage, ensuring maximum efficiency and minimal waste. Employee Involvement: Engaging our employees through awareness programs and encouraging energy-saving practices in the workplace. The Path to RE100 While achieving 25% green electricity is a significant milestone, our ultimate goal is to join the ranks of RE100 – a global initiative bringing together influential businesses committed to 100% renewable power. Here’s our roadmap to RE100: Scaling Up Renewable Procurement: We plan to gradually increase the percentage of renewable energy in our total electricity consumption. This includes expanding our partnerships with green energy suppliers and investing in additional renewable projects. Innovative Technologies: Exploring and adopting cutting-edge technologies such as energy storage systems and smart grids to enhance our renewable energy capabilities. Sustainable Product Development: Integrating sustainability into our product development process, ensuring our products are energy-efficient and environmentally friendly. Advocacy and Leadership: Taking a proactive role in advocating for renewable energy policies and practices within our industry and beyond. We aim to lead by example, inspiring other businesses to commit to RE100. Regular Reporting and Transparency: Maintaining transparency in our progress towards RE100 through regular reporting and updates. This ensures accountability and builds trust with our stakeholders. Benefits of Green Energy for Fuzetec Adopting green energy not only aligns with our sustainability goals but also brings several benefits to Fuzetec: Cost Savings: Renewable energy sources are becoming increasingly cost-competitive, leading to long-term cost savings. Reputation Enhancement: Demonstrating our commitment to sustainability enhances our brand reputation and attracts eco-conscious customers and investors. Regulatory Compliance: Staying ahead of regulatory requirements related to environmental sustainability. Innovation and Growth: Driving innovation in our products and processes, leading to growth opportunities in the green energy market. Conclusion Fuzetec’s commitment to green energy is a crucial part of our sustainability strategy. By achieving 25% green electricity consumption, we have laid a solid foundation for our journey towards RE100. As we continue to pursue our green energy goals, we remain dedicated to making a positive impact on the environment, our business, and our stakeholders. Together, we can create a sustainable future powered by renewable energy.

Fuzetec Technology, participating in the 2023 Taitronics (Taipei International Electronics Show) for the first time in 6 years, has introduced a MOSFET power management product line. Fuzetec products incorporate overcurrent protection components such as PPTC resettable fuses, overvoltage protection components like TVS Diodes and MOV Varistors, and patented OCP+OVP Hybrid circuit protection component, providing customers with a comprehensive circuit protection solution. Fuzetec’s primary product application markets include Automotive Electronics, Industry 4.0, Smart Applications, and the Energy Industry. In response to the demands of international automotive customers, MOSFET power management components have been introduced, coupled with professional circuit protection products, ensuring the safety of customer products.”

Fuzetec（富致科技、台湾・新北市）は回路保護に特化し、とくに PPTC リセッタブルヒューズ（Polymer PTC） に強みがあります。過電流や発熱時に抵抗が急上昇して回路を保護し、異常解消後は自動復帰して繰り返し使用可能。自社ブランドは 50+ カ国に展開し、国際特許・認証を保有、日本・米国の主要自動車メーカーにも採用されています。独自の高分子配合とプロセスを UL1434 に沿って管理し、社内基準で 6000 回超の再使用を目標に運用。陳繼聖董事長によれば、25 年間で交換事例はなしとのこと。アジアでの EV 需要拡大を追い風に、本年中に新工場を稼働し、生産能力を 1.8 倍へ引き上げ、日本市場でのサポートを強化します。 ハイライト PPTC の強み：自動限流・自動復帰 グローバル展開：50+ カ国 車載実績：日米の主要 OEM 準拠基準：UL1434 耐久目安：6000 回超、25 年交換事例なし（自社説明） 能力強化：新工場で 1.8× へ 再使用可能なヒューズで回路保護　台湾から世界50カ国へ　

Date: Jul.2~4, 2025 Venue: Shanghai New International Expo Center Fuzetec Booth: E7#H511 http://www.motor-expo.com/index.asp

Date: Apr.15~17, 2025 Venue: Shanghai New International Expo Center Fuzetec Booth: https://www.electronicachina.com.cn/en/important-exhibitions-for-the-industry

本公司辦理公開發行，已於6/22申報生效，股票代碼：6642

Date: Apr.9~11, 2025 Venue: Shenzhen Convention & Exhibition Center Fuzetec Booth: https://shenzhen.icef.com.cn/index

6 Intriguing Facts About Resettable Fuses in Modern Electronics Resettable fuse technology has revolutionized the way we protect electronic devices from overcurrent situations. Unlike traditional fuses that require replacement after tripping, resettable fuses offer an innovative solution that allows them to reset automatically after a fault is cleared. This self-resetting mechanism is not only convenient but also enhances the reliability and longevity of electronic systems, making them incredibly valuable in various applications. As we delve deeper into the world of resettable fuses, you’ll discover a treasure trove of insights about their function, construction, and practical implications in modern electronics. In the following sections, we will explore the anatomy of resettable fuses, particularly the Polymer Positive Temperature Coefficient (PTC) devices, and understand what materials contribute to their unique properties. Additionally, we will examine whether these devices come with a “reset” limit, revealing essential considerations for their usage. Finally, we’ll discuss the role of the Fuse 5mm 125VAC 5A in conjunction with resettable fuses and how they work together to provide robust protection in complex electronic systems. With this understanding, you’ll be well-equipped to appreciate the significance of resettable fuses and their impact on the reliability of electronic devices. Join us on this enlightening journey as we uncover six intriguing facts about resettable fuses that highlight their importance in today’s technology-driven world. Whether you’re an electronics enthusiast, a professional in the field, or simply curious about how your devices are protected, there’s something valuable for everyone in this exploration of resettable fuses. Understanding Resettable Fuses: Definition and Function What is a Resettable Fuse (PPTC)? A resettable fuse, often referred to as a polymeric positive temperature coefficient device (PPTC), is an essential component in modern electronics that provides protection against overcurrent situations, including overloads, overheating, and short circuits. Unlike traditional fuses that need to be replaced once they trip, resettable fuses can automatically reset themselves after the fault has been cleared. What Makes Resettable Fuses Unique? Self-Resetting Mechanism: When excessive current flows through a resettable fuse, the temperature of the fuse rises. As the temperature increases, the resistance in the fuse increases significantly (this is known as the positive temperature coefficient). Once the fault condition is resolved, the fuse cools down, and its resistance returns to a low state, allowing current to flow normally again. Comparison with Traditional Fuses: Traditional Fuses: Once they blow due to an overload, they must be replaced. They operate by melting a wire link, which completely interrupts the circuit. Resettable Fuses: They don’t need replacement after tripping, making them more convenient in applications where maintenance is challenging. Feature Resettable Fuse (PPTC) Traditional Fuse Resetting Capability Yes, self-resetting No, must be replaced Response to Overcurrent Increases resistance to limit current Melts to break circuit Maintenance Needs Minimal, no replacement required Requires replacement after tripping Ideal Usage Scenario Frequent overcurrent situations, remote locations Situations requiring complete isolation of current How Does a Resettable Fuse Work? As current flows through a resettable fuse, it remains in a low-resistance state. When the current exceeds a predetermined threshold, the device heats up due to the resistance, causing its core material to expand. The expansion disrupts the conductive pathways within the fuse, leading to a sharp increase in resistance and effectively limiting the current flow. Once the fault condition is resolved and power is removed, the fuse cools down, allowing the conductive pathways to reconnect and restore normal current flow. Types of Resettable Fuses Resettable fuses come in various types, mainly categorized into two broad types based on their construction materials: Polymeric PTC Fuses: Most commonly used in low-current applications. Made from a polymer material infused with conductive particles, they are smaller and have quicker response times. Ceramic PTC Fuses: Suitable for high-current applications. Constructed from ceramic materials, they have higher current capacity and higher resistance and slower Time to Trip as compared to Polymeric PTC Fuses. Real-World Applications of Resettable Fuses The Anatomy of Resettable Fuse PTC Resettable fuses are widely used across various sectors, including: Consumer Electronics: Protecting devices like smartphones and laptops from damage due to overcurrent. Automotive Systems: Used in power distribution units, starter motors, and battery management systems to prevent electrical faults. Telecommunications Equipment: Ensuring reliable operation of devices by preventing damage from surges. In summary, resettable fuses represent a significant advancement in circuit protection technology. Their ability to self-reset makes them incredibly useful in applications where continuous operation is critical, and replacing traditional fuses would be impractical. As electronic devices continue to evolve, the role of resettable fuses in ensuring safety and reliability only become more vital. In the realm of modern electronics, the resettable fuse PTC (Polymeric Positive Temperature Coefficient device) plays a crucial role in safeguarding circuits from overcurrent faults. What makes these fuses unique lies in their construction and functionality. Let’s delve into the materials that compose a resettable fuse PTC and how they contribute to its protective capabilities. will Core Materials At the core of a resettable fuse PTC is a non-conductive crystalline organic polymer. This polymer serves as the matrix that holds the conductive fillers in place, ensuring stability and effectiveness under normal operation conditions. Conductive Filler: This polymer matrix is infused with carbon black particles. These particles are crucial as they form conductive pathways when the fuse is in its normal state, allowing current to flow with minimal resistance. The interaction between the polymer and carbon creates what can be described as a “network” of conductors throughout the fuse. Mechanical Structure: The combination of the polymer and carbon black results in a device that exhibits a unique behavior in response to temperature changes. When current flows through the fuse, it generates heat. As the temperature rises, the polymer expands, transitioning from a crystalline to an amorphous state, which disrupts the conductive pathways formed by the carbon particles. This transition leads to an increase in resistance and subsequently reduces the current flowing through the circuit. Thermal Properties: Holding Current and Trip Current: The resettable fuse PTC has defined specifications regarding its holding current (the maximum current it can pass without tripping) and trip current (the current level that will cause it to trip). For instance, common values for these currents can range from 500mA to several amps depending on the specific design of the fuse. Reset Mechanism: Once the fault condition is removed, the fuse cools down, allowing the polymer to return to its crystalline state, thus re-establishing the conductive pathways and enabling current to flow normally again. Comparison with Traditional Fuses To visualize the differences between traditional fuses and resettable fuses, consider the following table: Feature Traditional Fuse Resettable Fuse PTC Reset Capability No (must be replaced) Yes (self-resetting) Response Time Slower Faster (sub-second) Construction Material Metal wire Polymer with carbon filler Typical Applications General circuitry Consumer electronics, automotive Trip Mechanism Melting Resistance increase due to heat Example of Application Resettable fuses are commonly found in consumer electronics such as chargers, power supplies, and even in automotive systems to protect against short circuits. For example, a Polymeric Resettable Fuse PTC rated at 6V, 500mA might be used in a mobile charger circuit to prevent overheating. If a fault occurs, the polymer expands, reducing current to a safe level until the charger cools down, at which point it resets automatically. In summary, the resettable fuse PTC is a sophisticated yet vital component in modern electronics, combining advanced materials and engineering to provide reliable protection against overcurrent situations. As technology advances, understanding its anatomy will continue to be essential for effective circuit design and protection. Do Resettable Fuses Come with a “Reset” Limit? Resettable fuses, also known as Polymer Positive Temperature Coefficient (PPTC) devices, are designed to protect electronic circuits from overcurrent conditions. They are quite different from traditional fuses, as they have the ability to reset themselves after a fault condition. However, a common question arises: do these devices have a limit on how many times they can be reset? Key Points to Consider Repeated Resets Can Cause Wear: While resettable fuses can technically reset multiple times, they are not immune to wear and tear. Each time a resettable fuse trips and resets, it undergoes thermal stress that can degrade its polymer matrix over time. For example, if a resettable fuse frequently trips due to a recurring overcurrent issue, its effectiveness may diminish, leading to a reduced lifespan. Manufacturer Guidelines: Most manufacturers provide specific instructions regarding the maximum number of trip-reset cycles a particular fuse can handle. It’s crucial to refer to these guidelines to ensure optimal performance. For instance, if a device has a specified limit of 10,000 cycles, exceeding this could result in unreliable protection. Impact of External Factors: Environmental conditions such as temperature and humidity can affect the resettable fuse’s ability to function as intended. In high-temperature environments, the material may degrade faster, leading to a shorter reset limit. It’s also important to consider the application. In high-current applications, like automotive systems, the resettable fuse may experience more stress than in lower-current environments. Comparison with Traditional Fuses: Unlike traditional fuses that need to be replaced after a single trip, resettable fuses can restore circuit functionality without replacement. However, the latter may not be as reliable over time, especially with excessive cycling. Here’s a brief comparison: Feature Resettable Fuse (PPTC) Traditional Fuse Reset Capability Yes, after fault condition removal No, needs replacement Response Time Slower compared to traditional fuses Generally faster Lifespan Limited by cycling Limited to one use Conclusion on Usage: For applications that regularly experience overcurrent conditions, it’s advisable to monitor the performance of resettable fuses and consider replacing them after a certain number of resets or if they show signs of degradation. Always evaluate the specific requirements of your electronic application to determine the best type of fuse. For example, if you anticipate frequent tripping, a traditional fuse may be more suitable for ensuring immediate circuit protection. Examples of Applications: In consumer electronics, like laptops, resettable fuses can help prevent damage from power surges while allowing for quick recovery after a fault. Automotive applications, such as battery management systems, benefit from the self-resetting nature of PPTCs, enhancing reliability without the need for constant replacements. In summary, while resettable fuses do not have a strict limit on resets, their longevity and effectiveness can diminish with repetitive use, making it essential to follow manufacturer recommendations and application needs. The Role of Fuse 5mm 125VAC 5A in Electronics In the realm of modern electronics, the integration of various protective components is crucial for ensuring device safety and reliability. Among these, the Fuse 5mm 125VAC 5A plays a significant role, especially when paired with resettable fuses like PTC devices. Understanding how these components work together enhances circuit protection and overall system performance. Functionality of Fuse 5mm 125VAC 5A Basic Operation: The Fuse 5mm 125VAC 5A is a conventional fuse that interrupts the circuit when the current exceeds its rated capacity. It’s designed to melt and stop current flow, protecting the connected devices from damage due to overcurrent situations. Voltage Rating: With a rated voltage of 125VAC, this fuse is ideal for various household and industrial applications where AC voltage is standard, such as power supplies and small appliances. Complementing Resettable Fuses When combined with resettable fuses like PPTC devices, the Fuse 5mm 125VAC 5A enhances circuit protection by providing a dual-layer defense mechanism: Initial Protection: Upon detecting overcurrent, the traditional fuse acts first by blowing and cutting off the circuit. This immediate response prevents potential damage to sensitive components. Resettable Recovery: If the fault causing the overcurrent is temporary, the resettable fuse comes into play after the circuit is restored. Once the power is removed and the PPTC cools down, it resets itself, allowing normal operation to resume without the need for replacing the blown fuse. Comparison of Protection Types Feature Fuse 5mm 125VAC 5A Resettable Fuse (PTC) Type of Protection One-time blow Self-resetting Replacement Needs replacement No replacement needed Response Time Quick Slower but reusable Cost Generally low Slightly higher Usage Scenario Single overloads Frequent overloads Practical Applications Consumer Electronics: Devices like TVs and speakers often integrate a 5mm fuse alongside PTC devices to manage both immediate and recurring overcurrent situations. Power Supply Units: In power supplies that might experience varying load conditions, the combination ensures that peak currents are handled effectively, providing a balance between immediate protection and long-term reliability. Example of Integration Consider a common scenario in a desktop computer power supply: Initial State: The circuit operates normally, utilizing the Fuse 5mm 125VAC 5A to handle regular current loads. Overcurrent Situation: If a short circuit occurs, the traditional fuse blows, disconnecting the power immediately. Automatic Reset: Once the fault is cleared and the system is rebooted, the resettable fuse allows for a seamless restoration of power without needing to replace any components. Conclusion Understanding how the Fuse 5mm 125VAC 5A works in conjunction with resettable fuses not only enhances safety but also optimizes the performance of electronic devices. This combination of protection strategies ensures that both immediate and prolonged overcurrent situations are effectively managed, making it a standard practice in modern electronics design. In conclusion, the importance of resettable fuses in modern electronics cannot be overstated. They serve as a reliable solution for protecting circuits from overcurrent situations, seamlessly resetting themselves once the fault is resolved. As discussed, these devices operate through a unique mechanism where their resistance increases with temperature, allowing them to self-reset after cooling down, which distinguishes them from traditional fuses that require replacement. We explored the components that make up a resettable fuse PTC, including the polymeric material and conductive fillers, which play a vital role in their functionality. It’s essential to note that while resettable fuses can withstand multiple resets, there is a limit to their lifespan due to the wear and tear caused by repeated thermal cycling. Manufacturers often provide guidelines on usage to ensure optimal performance, especially in applications where overcurrent conditions are common. Additionally, the integration of Fuse 5mm 125VAC 5A with resettable fuses showcases a dual-layer approach to circuit protection, effectively handling both immediate and recurrent overcurrent scenarios. This synergy not only safeguards sensitive components but also enhances the overall reliability of electronic devices. As you continue to explore the fascinating world of circuit protection, consider the practical applications of resettable fuses in your projects. Whether you’re working on consumer electronics, automotive systems, or telecommunications equipment, utilizing resettable fuses can significantly improve safety and performance. Make the switch to resettable fuses in your designs and experience the convenience and reliability they offer.

Introduction In today’s rapidly evolving electronics industry, PPTC (Polymeric Positive Temperature Coefficient) devices have become a cornerstone of circuit protection and reliability. These resettable fuses are now critical not just in consumer electronics but also in industrial automation, electric vehicles (EVs), renewable energy systems, and high-speed telecommunications equipment. For B2B procurement teams, engineers, and decision-makers, understanding the strategic value of PPTC goes beyond technical specifications. It’s about aligning component selection with broader business goals: reducing downtime, ensuring compliance with international standards, minimizing total cost of ownership (TCO), and creating a reliable global supply chain. This guide explores why PPTC is an indispensable component in modern B2B markets, covering its role in supply chain positioning, emerging market trends, and the profound impact it has on procurement strategies. 10 Strategic Insights for PPTC As the electronics industry continues to evolve, B2B procurement teams face increasing complexity when sourcing components like PPTC (Polymeric Positive Temperature Coefficient) devices. These resettable fuses are no longer just technical parts—they play a crucial role in risk management, compliance, cost optimization, and competitive advantage. The following 10 strategic insights will help procurement managers, engineers, and executives make informed decisions when integrating PPTC into their supply chains. Upgrading Overcurrent Protection: From Single-Use to Resettable Solutions Why Traditional Fuses No Longer Meet Modern High-Performance Needs Traditional fuses are single-use devices that require manual replacement after a fault occurs. This model is no longer sustainable for industries that depend on: Continuous operations (e.g., data centers, 24/7 production lines) Remote or hard-to-reach installations, where maintenance costs are prohibitive Global scaling, where downtime directly impacts revenue Challenges of traditional fuses: High operational downtime due to manual replacement Increased maintenance labor costs Greater risk of production delays and client dissatisfaction How Resettable PPTC Design Reduces Downtime Risks PPTC devices automatically reset after the fault condition clears, eliminating the need for manual intervention. Key benefits: Self-healing capability minimizes production stoppages Reduces total maintenance hours and costs Extends equipment lifespan by preventing catastrophic circuit failures Case Study: Maintenance Cost Savings in a 24/7 Production Line A global manufacturing plant operating 24/7 integrated PPTC devices into its robotic assembly line: Result: 32% reduction in maintenance-related downtime Savings: Over $500,000 annually in service and replacement costs Impact: Improved on-time delivery performance and customer satisfaction Metric Before PPTC After PPTC Downtime per month 48 hours 12 hours Annual maintenance cost $1.56M $1.06M Customer order delays 15% 4% Matching PPTC with Critical International Standards Regulatory compliance is non-negotiable in global B2B operations. PPTC components must meet strict international standards to ensure safe, legal, and scalable production. International Certification Framework For companies exporting electronics to markets like the EU, U.S., and Japan, adherence to the following certifications is essential: UL (Underwriters Laboratories): Safety compliance for the U.S. market IEC (International Electrotechnical Commission): Global standard for electronic components RoHS (Restriction of Hazardous Substances): Environmental compliance for EU and global markets REACH: Ensures products are free of harmful chemicals, critical for EU sales B2B Tip: Missing certifications can result in shipment delays, fines, or product recalls, directly affecting brand reputation and profitability. OEM/ODM Supply Chain Management When working with OEM (Original Equipment Manufacturer) or ODM (Original Design Manufacturer) partners, procurement teams must: Conduct regular audits of suppliers to verify compliance documents Establish multi-source strategies to avoid reliance on a single vendor Require traceability documentation to track raw materials and production processes Key questions for procurement: Does the supplier provide complete UL and IEC documentation? Are their manufacturing facilities RoHS and REACH compliant? What contingency plans exist for supply chain disruptions? PPTC Procurement Evaluation Table Evaluation Criteria Importance Common Issues Certification Compliance High Missing UL or IEC documentation Supply Stability High Single-source dependency causing stockouts Cost Control Medium Short-term price volatility Customization Capability Medium Extended lead times for tailored specifications Challenges and Opportunities in High-Power Applications As global industries adopt more powerful systems, PPTC devices are now required to handle higher currents, temperatures, and environmental stresses. Electric Vehicle (EV) Market Electric vehicles represent one of the fastest-growing markets for PPTC integration. Battery Management Systems (BMS): PPTC protects sensitive battery circuitry from overcurrent, ensuring performance and safety. High-Temperature Stability: EV environments demand components that can withstand extreme heat and vibration. Charging Infrastructure: PPTC ensures safety in public and private charging stations handling high power loads. 5G and Data Centers With the rollout of 5G and massive data expansion: High-frequency, high-speed communications require stable, compact protection solutions. PPTC devices safeguard network infrastructure such as routers, base stations, and servers from voltage spikes and surges. Procurement teams must prioritize PPTC products with miniaturized designs and low signal interference characteristics. Industrial Automation Equipment In Industry 4.0 environments, continuous operation is critical: Problem without PPTC: Voltage surges can cause sudden shutdowns, halting production lines and risking worker safety. Solution with PPTC: Self-resetting protection ensures continuous uptime, safeguarding robotics, sensors, and power distribution systems. High-Power Sector PPTC Application Procurement Focus Electric Vehicles BMS, Charging Stations, ECU Modules Automotive-grade certification 5G & Data Centers Routers, Servers, Base Stations Miniaturization, signal integrity Industrial Automation Robotics, Sensors, Motors 24/7 operational reliability Cost vs. Long-Term Value: ROI Analysis for B2B Procurement When evaluating PPTC, procurement teams must look beyond initial unit price and assess the total lifecycle cost. Initial Unit Price vs. Total Lifecycle Cost PPTC may have a slightly higher upfront cost compared to traditional fuses. However, the resettable nature significantly lowers maintenance, replacement, and labor expenses over time. Calculating Impact on After-Sales Service and Warranty Fewer product failures mean reduced warranty claims. Lower repair costs improve customer satisfaction and retention. Extended product lifespans reduce logistical costs associated with returns and replacements. PPTC’s Impact on Total Cost of Ownership (TCO) Cost Factor With Traditional Fuse With PPTC Maintenance Labor High Low Downtime Costs High Significantly Reduced Warranty Claims Frequent Minimal Total Lifecycle Cost Unpredictable Stable & Optimized B2B Insight: PPTC is not just a component purchase; it’s a strategic investment that enhances ROI and strengthens long-term operational efficiency. Collaboration Between Engineers and Procurement Teams The success of a PPTC procurement strategy depends on close collaboration between design engineers and procurement managers. Common Communication Gaps Engineers focus on technical performance, while procurement prioritizes cost and availability. Misaligned goals can lead to delayed launches or costly redesigns. Lack of standardized documentation results in misinterpretation of specifications. Integrating PPTC into Multi-Layer Protection Architectures Modern electronics, especially industrial-grade systems, require multi-layer protection strategies to ensure stability and resilience against complex electrical risks. PPTC devices serve as the core resettable layer, but they achieve maximum effectiveness when integrated with other protection components. Synergy with TVS, NTC, and Other Components TVS Diodes (Transient Voltage Suppression): Protect circuits from sudden voltage spikes. PPTC works in tandem by handling sustained overcurrent events after the initial voltage surge. NTC Thermistors: Monitor and manage inrush currents during power-up sequences. Combined with PPTC, they create a balanced system for temperature and current regulation. EMI Filters: Reduce noise and electromagnetic interference that could impact PPTC performance. Example Multi-Layer Strategy: TVS Diode → NTC Thermistor → PPTC Fuse → System Load This sequence offers a tiered shield, ensuring both transient and long-term protection. Layered Protection Strategy for Industrial Products Industrial machinery and robotics demand continuous uptime. A three-tier architecture is commonly adopted: Primary Surge Protection: TVS or MOV components handle external voltage surges. Current Stabilization: NTC devices smooth power transitions and prevent component stress. Resettable Safety Layer: PPTC provides automatic circuit recovery after fault resolution. Global Supply Chain Risk Management In today’s interconnected world, supply chain stability is just as crucial as product quality. Disruptions in PPTC production can impact multiple industries, from automotive to telecommunications. Impact of Raw Material Shortages PPTC relies on specialized polymer materials, making it vulnerable to raw material scarcity. Geopolitical tensions, natural disasters, or sudden demand spikes can lead to shortages. Procurement teams must monitor upstream suppliers to anticipate potential disruptions. Challenges in Cross-Border Procurement Logistical Barriers: Customs delays, shipping congestion, and international transport restrictions. Regulatory Complexity: Export restrictions or differing compliance requirements across regions. Currency Fluctuations: Affect landed cost calculations and budget predictability. Building a Multi-Source Procurement Strategy To mitigate risks: Diversify Supplier Base: Work with multiple vendors across different geographic regions. Strategic Stockpiling: Maintain buffer inventory for critical PPTC components. Real-Time Supply Chain Monitoring: Use digital platforms to track lead times and potential bottlenecks. Risk Factor Mitigation Strategy Raw material shortage Multi-source sourcing and stockpiling Logistics delays Regional distribution centers Regulatory compliance gap Early certification verification Technology Trends: Miniaturization and High-Temperature Resistance As devices become smaller and more powerful, PPTC technology must evolve to meet these new requirements. Miniaturization for EV and AIoT Devices Electric Vehicles (EVs): Demand for smaller PPTC components that fit into compact battery packs and control modules. AIoT (Artificial Intelligence of Things): Edge devices require ultra-compact, high-efficiency circuit protection. Material Innovations for Harsh Environments To operate reliably under extreme conditions, PPTC devices now feature: High-temperature resistance: Withstanding environments up to 150°C. Humidity protection: Suitable for marine, outdoor, or industrial settings. Vibration tolerance: Essential for automotive and aerospace applications. Post-2025 Market Roadmap 2025–2027: Increased adoption of miniaturized PPTC for wearable tech and medical devices. 2028–2030: High-temperature PPTC integrated into next-generation EV and renewable energy solutions. Beyond 2030: Smart PPTC with self-monitoring and predictive maintenance capabilities. Digital Procurement and Data-Driven Decision Making Digital transformation is revolutionizing procurement, making it data-driven and predictive. AI-Powered Demand and Cost Forecasting Machine learning models analyze historical data to predict future PPTC demand. AI helps identify cost-saving opportunities by forecasting price fluctuations in raw materials. Procurement Automation and Real-Time Inventory Monitoring Automated ordering systems reduce manual workload and human error. Real-time dashboards provide visibility into global inventory levels and lead times. Digital Traceability for PPTC Products Blockchain and digital twin technologies enable full traceability of PPTC components. Enhances quality control and regulatory compliance. Supports sustainability reporting by tracking material origins and production processes. ESG and the Future of Green Procurement Sustainability is no longer optional—it’s a core requirement for modern B2B procurement strategies. Reducing Electronic Waste from Single-Use Fuses PPTC’s resettable nature drastically cuts down on the number of discarded fuses. Helps companies reduce their carbon footprint and comply with environmental regulations. PPTC’s Role in the Circular Economy By extending product lifecycles, PPTC aligns with circular economy principles. Enables component reuse and recycling within larger systems. Enhancing Brand Value Through Green Procurement Marketing eco-friendly designs builds trust with environmentally conscious clients. ESG compliance opens doors to government incentives and new business opportunities. PPTC Selection Process: A Professional Guide for B2B A clear selection process helps procurement and engineering teams avoid costly mistakes and ensure smooth integration of PPTC devices. Needs Analysis Identify voltage and current load requirements. Consider environmental factors such as temperature, humidity, and vibration. Define product-specific reliability goals and safety margins. Technical Validation Conduct sample testing under real-world conditions. Perform lifecycle and reliability tests to simulate long-term usage. Verify compatibility with other protective components in the circuit. Business Evaluation Develop a supplier scoring model based on: Compliance certifications (UL, IEC, RoHS) Lead times and production capacity Cost stability and long-term agreements Evaluate geopolitical and logistical risks associated with each supplier. Final Decision and Implementation Sign off on final specifications with cross-department approval. Run a pilot production batch before full-scale rollout. Implement continuous monitoring to ensure consistent quality. Comparison Table: PPTC vs. Traditional Fuses in B2B Environments Evaluation Aspect PPTC Resettable Fuse Traditional Single-Use Fuse Service Life Multiple resets, long-term stability Single-use, frequent replacement Maintenance Costs Low, minimizes downtime High, manual maintenance required Compliance Meets multiple certifications, export-friendly Requires additional testing Environmental Impact (ESG) Reduces electronic waste High waste, non-sustainable Long-Term ROI High Moderate Conclusion: The Strategic Importance of PPTC in B2B Procurement PPTC devices are more than just electronic components—they are strategic assets that enable companies to: Reduce operational costs Ensure product reliability and safety Align with global ESG and compliance standards For B2B procurement teams, the next three to five years will be critical for building resilient supply chains around PPTC technology. Early collaboration between engineering and procurement teams will be essential to: Optimize component selection Prevent costly production errors Enhance market competitiveness By integrating PPTC into product design and procurement strategies, companies can position themselves as leaders in innovation, sustainability, and customer trust.

Introduction PPTC device and Resettable Fuse ( PTC THERMISTOR, PTC VARIABLE RESISTER, Variable Resistance PTC Thermistor, Variable Resistor, Current Limiter ) technology synergistically integrate the advance polymer material technologies, conductive material science, novel processing engineering, and fundamental electronic and electrical theory. Electrical resistance of such material and devices increases with temperature increases and vice versa. Fuzetec has successfully integrated all theses and developed a wide range of PPTC devices specifically designed to protect circuits from overcurrent. How Does PPTC Resettable Fuse Work FUZETEC™ resettable fuses are designed and made of patented novel PPTC material in thin chip form where conductive particles are dispersed in a polymer that has a crystalline structure. At normal operating conditions there are numerous chains forming conductive paths throughout the PPTC material. Under fault conditions (Tripped State), excessive current flows through the PPTC device and the PPTC material heats up. This makes the polymer matrix’s morphology change from crystalline to amorphous. Under these conditions the conductive particles move apart from each other, most of them no longer conduct current and the resistance of the device increases sharply. Upon fault current being removed, the resettable fuse is resetted and allows the current through the circuit again. PPTC Hold/Trip Current & Thermal Derating Curve IH (I Hold) defined as the maximum current the device will hold at rated temperature ( 23℃) without tripping. The probability that the PPTC will trip increases as the current approaches IT (I Trip), defined as the minimum current required to cause the PPTC device to trip at rated temperature. The range of current values between IH and IT represent a zone where performance of the device with respect to tripping can not be predicted with certainty(Fig.2, Region C). Depending on the initial resistance of the PPTC device, ambient temperature and mounting conditions, the device could either maintain a low resistance state and hold this current or it may be a sufficient current to cause the device to switch to the high resistance state.

Introduction When designing electronic circuits, protecting them from overcurrent conditions is crucial. PPTC (Polymeric Positive Temperature Coefficient) resettable fuses offer a reliable solution. This guide will walk you through the essentials of selecting the right PPTC resettable fuse for your application. What is a PPTC Resettable Fuse? A PPTC resettable fuse is a type of overcurrent protection device that automatically resets after the fault condition is removed. It consists of a polymer material that increases its resistance significantly when heated by excessive current. Once the current returns to a normal level, the fuse cools down and returns to its low-resistance state, ready to protect the circuit again. Advantages of PPTC Resettable Fuses Automatic Reset: Unlike traditional fuses, PPTC fuses reset themselves without needing replacement. Durability: They can withstand multiple overcurrent events. Versatility: Suitable for a wide range of applications, from consumer electronics to automotive systems. Factors to Consider When Selecting a PPTC Resettable Fuse 1. Operating Voltage The operating voltage of your circuit is a primary consideration. PPTC fuses are rated for different maximum voltages, and choosing a fuse with a voltage rating higher than your circuit's operating voltage ensures reliable protection. 2. Hold Current (Ihold) The hold current is the maximum current the PPTC fuse can conduct indefinitely without tripping. It's essential to select a fuse with a hold current rating higher than the normal operating current of your circuit but lower than the expected fault current. 3. Trip Current (Itrip) The trip current is the current level at which the fuse transitions to a high-resistance state, interrupting the current flow to protect the circuit. The trip current should be higher than the maximum expected normal operating current but lower than the potential fault current. 4. Maximum Voltage The maximum interrupt voltage is the highest voltage can safely be applied across a PPTC Resettable Fuse in its tripped state. 5. Maximum Current The maximum fault current is the highest current the maximum fault current that can safely be used to trip a PPTC Resettable Fuse. 6. Time-to-Trip Time-to-Trip is the amount of time that a PPTC device needs to transition from a low-resistance state to a high-resistance “tripped” state under a fault condition. Ensure the PPTC device provides the desired protection capabilities. This parameter defines how quickly the fuse responds to an overcurrent condition. Some applications, like power supplies, may require fast response times, while others might be more tolerant of slower response times. 7. Thermal Derating PPTC devices are temperature-sensitive. Check the thermal derating table to verify the performance of the PPTC device you select under different ambient temperatures. 8. Environmental Conditions Consider the operating environment, including temperature, humidity, and potential exposure to harsh conditions. Some PPTC fuses are designed for automotive or industrial applications, offering greater resistance to temperature extremes and vibration. 9. Safety Certifications Check for safety certifications such as UL, CUL, and TUV for the selected PPTC fuse. Certified fuses comply with international safety standards and ensure reliable performance. Types of PPTC Resettable Fuses Surface-Mount Devices (SMD) SMD PPTC fuses are designed for compact applications and are mounted directly onto the surface of a PCB. They are ideal for consumer electronics, mobile devices, and other applications where space is a constraint. Radial Leaded Devices (DIP/THRU-HOLE) Radial leaded PPTC fuses are suitable for through-hole mounting and offer higher current ratings compared to SMD fuses. They are commonly used in power supplies, battery packs, and industrial electronics. Chip Devices Chip PPTC fuses are miniature fuses used in small electronic devices, including smartphones, tablets, and portable gadgets. Their small size makes them suitable for applications with limited space. Strap-Type Devices Battery Strap PTC Resettable Fuses are designed to be resistance spot welded to battery cells or pack interconnect straps. They are utilized in a variety of applications, including battery packs for telematic black box, e-call, consumer electronics and power tools. Application-Specific Selection Consumer Electronics In consumer electronics, such as smartphones, tablets, and laptops, the primary considerations are size, reset capability, and reliability. SMD and chip PPTC fuses are commonly used due to their compact form factors and reliable performance. Automotive Automotive applications demand fuses that can withstand high temperatures, vibrations, and electrical noise. Radial leaded and strap-type PPTC fuses with robust environmental ratings are ideal for protecting automotive circuits, including infotainment systems, sensors, and control modules. Industrial and Medical Equipment For industrial and medical equipment, reliability and safety are paramount. Radial leaded, axial leaded, and strap-type PPTC fuses with high hold currents and fast response times ensure protection against overcurrent conditions in critical systems. Power Supplies Power supplies require fuses that can handle high fault currents and provide quick response times. Radial leaded and strap-type PPTC fuses are often used in power supply units (PSUs) to protect against overcurrent conditions and ensure stable operation. Conclusion Selecting the right PPTC resettable fuse involves careful consideration of various factors, including operating voltage, hold and trip currents, time-to-trip, environmental conditions, and application-specific requirements. By understanding these parameters and conducting thorough testing, you can ensure reliable overcurrent protection for your electronic circuits. PPTC resettable fuses offer a versatile and durable solution, making them an essential component in modern electronic design.

Introduction In the realm of circuit protection, traditional fuses and PPTC (Polymeric Positive Temperature Coefficient) resettable fuses are critical components, each with its unique features and applications. Understanding the differences between these two types of fuses can significantly impact the efficiency and reliability of electronic systems. This article provides an in-depth comparison of traditional fuses and PPTC resettable fuses, highlighting their advantages, disadvantages, and ideal use cases. Understanding Traditional Fuses What is a Traditional Fuse? A traditional fuse is a simple and effective protective device used in electrical circuits. It consists of a metal wire or strip that melts when excessive current flows through it, thereby interrupting the circuit and preventing damage to the components. Traditional fuses come in various types, including glass tube fuses, blade fuses, and ceramic fuses, each suited for specific applications. How Do Traditional Fuses Work? Traditional fuses operate on a straightforward principle. When the current flowing through the fuse exceeds its rated capacity, the metal wire heats up and melts. This melting breaks the circuit, stopping the current flow and protecting the rest of the circuit from damage. Once a traditional fuse has blown, it must be replaced with a new one to restore the circuit's functionality. Advantages of Traditional Fuses Simplicity: Traditional fuses are straightforward in design and easy to install. Cost-Effective: They are generally inexpensive and widely available. Reliability: They provide reliable protection by completely disconnecting the circuit during an overcurrent event. Disadvantages of Traditional Fuses Non-Resettable: Once blown, traditional fuses must be replaced, which can be inconvenient and costly over time. Limited Flexibility: They do not offer adjustable protection levels and are specific to their rated capacity. Interruption Time: The time it takes for a traditional fuse to blow can vary, potentially allowing some damage to occur before the circuit is interrupted. Understanding PPTC Resettable Fuses What is a PPTC Resettable Fuse? PPTC resettable fuses are advanced circuit protection devices that offer the unique ability to reset themselves after an overcurrent event. These fuses are made from a polymer material with conductive particles embedded within. When the current exceeds the fuse's rated capacity, the polymer heats up, causing the conductive particles to separate and the resistance to increase dramatically, thereby limiting the current flow. How Do PPTC Resettable Fuses Work? When an overcurrent event occurs, the PPTC material heats up, increasing its resistance and effectively reducing the current to a safe level. Once the fault condition is cleared and the device cools down, the PPTC material returns to its original low-resistance state, allowing normal current flow to resume. This self-resetting feature makes PPTC fuses particularly useful in applications where manual replacement of fuses is impractical. Advantages of PPTC Resettable Fuses Self-Resetting: They automatically reset after the fault condition is cleared, eliminating the need for manual replacement. Versatile Protection: PPTC fuses can handle multiple overcurrent events without needing replacement. Maintenance-Free: They reduce maintenance costs and downtime associated with fuse replacement. Disadvantages of PPTC Resettable Fuses Higher Initial Cost: PPTC fuses are generally more expensive than traditional fuses. Complexity: Their operation involves more complex materials and mechanisms, which can make them more difficult to implement in some circuits. Limited Current Rating: PPTC fuses may not be suitable for applications requiring very high current ratings. Comparing Traditional Fuses and PPTC Resettable Fuses Application Suitability Traditional Fuses Traditional fuses are ideal for applications where simplicity, cost-effectiveness, and reliability are paramount. They are commonly used in automotive circuits, household appliances, and other environments where replacing a blown fuse is straightforward and infrequent. PPTC Resettable Fuses PPTC resettable fuses are well-suited for applications where accessibility and maintenance are challenging. They are commonly used in consumer electronics, telecommunications, and battery protection systems, where their ability to reset after an overcurrent event offers significant advantages. Response to Overcurrent Events Traditional Fuses Traditional fuses provide a complete disconnection of the circuit during an overcurrent event, ensuring maximum protection for sensitive components. However, this also means that the circuit remains inoperative until the fuse is replaced. PPTC Resettable Fuses PPTC resettable fuses limit the current flow during an overcurrent event without completely disconnecting the circuit. This allows for continued, albeit limited, operation of the circuit, which can be beneficial in some applications. Cost Considerations Initial Cost Traditional fuses generally have a lower initial cost compared to PPTC resettable fuses. This makes them attractive for applications with tight budget constraints. Long-Term Cost PPTC resettable fuses, despite their higher initial cost, can offer long-term savings by reducing the need for maintenance and replacement. In environments where frequent overcurrent events occur, the ability of PPTC fuses to reset themselves can result in significant cost savings over time. Conclusion Both traditional fuses and PPTC resettable fuses play vital roles in circuit protection, each with its unique strengths and weaknesses. Traditional fuses offer simplicity, reliability, and cost-effectiveness, making them suitable for a wide range of applications. On the other hand, PPTC resettable fuses provide self-resetting capabilities, versatile protection, and reduced maintenance, ideal for applications where manual replacement of fuses is impractical. Choosing the right type of fuse depends on the specific requirements of the application, including factors such as cost, maintenance, accessibility, and the nature of the overcurrent events. By understanding the differences and benefits of each type of fuse, engineers and designers can make informed decisions to ensure the optimal protection and performance of their electronic systems.

Introduction In the automotive electronics industry, maintaining the highest standards of quality and reliability is crucial. Fuzetec Technology stands out in this regard, with its commitment to IATF 16949 certification and the production of AEC-Q200 compliant PPTC resettable fuses. This article explores the significance of these standards and how Fuzetec Technology's adherence ensures exceptional performance and reliability in automotive applications. Understanding IATF 16949 Certification Overview of IATF 16949 The International Automotive Task Force (IATF) 16949 standard is a globally recognized quality management system designed for the automotive sector. It integrates various aspects of ISO 9001, emphasizing continuous improvement, defect prevention, and reducing variability and waste in the supply chain. Achieving IATF 16949 certification signifies that a company adheres to the highest quality management practices, which is crucial for suppliers to automotive manufacturers. Key Components of IATF 16949 Process Approach: Emphasizes understanding and managing interrelated processes as a system to improve the organization’s efficiency and effectiveness. Customer Focus: Prioritizes meeting customer requirements and enhancing customer satisfaction. Risk-Based Thinking: Encourages identifying and addressing potential risks in the manufacturing and supply chain processes. Continuous Improvement: Focuses on the ongoing enhancement of processes, products, and services to meet and exceed customer expectations. Fuzetec Technology IATF-16949 Certification Fuzetec Technology's achievement of the IATF 16949 certification demonstrates its commitment to maintaining high-quality standards and continuous improvement. This certification assures automotive OEMs that the components produced are reliable, safe, and manufactured under stringent quality control processes, making Fuzetec a trusted supplier in the automotive industry. Understanding AEC-Q200 Compliance Overview of AEC-Q200 The Automotive Electronics Council (AEC) Q200 standard is a globally recognized qualification that sets the criteria for passive electronic components used in automotive applications. It defines the stress test requirements to ensure that these components can endure the harsh environments typical in automotive settings, such as extreme temperatures, vibrations, and humidity. Testing and Qualification AEC-Q200 compliance involves rigorous testing protocols to evaluate a component's durability and performance under various stress conditions. These tests include thermal cycling, high-temperature exposure, mechanical shock, and moisture resistance, among others. Components that pass these tests are deemed reliable and robust enough for use in automotive applications. Benefits for Automotive Applications Enhanced Reliability: AEC-Q200 compliant components, such as Fuzetec's PPTC resettable fuses, are designed to provide consistent performance in extreme conditions, ensuring the reliability of automotive electronic systems. Long-Term Durability: These components can withstand the thermal and mechanical stresses encountered in automotive environments, leading to longer lifespans and reduced maintenance. Safety Assurance: Compliance with AEC-Q200 ensures that components can protect critical automotive systems from electrical faults, enhancing overall vehicle safety. Fuzetec Technology's PPTC Resettable Fuses Product Overview Fuzetec Technology specializes in the production of PPTC (Polymeric Positive Temperature Coefficient) resettable fuses, which are essential for protecting electronic circuits from overcurrent conditions. These fuses are designed to trip and reset automatically, offering a reusable solution that enhances the safety and longevity of electronic devices. Fuzetec High Temperature Product Series FHT Series - Radial Leaded PTC Fuzetec's FHT Series is designed for high-temperature applications, providing reliable overcurrent protection with the following specifications: Operation Current: 0.50A~15.00A VMAX: 16VDC/30VDC IMAX: 40A~100A Operating Temperature: Up to 125℃ The FHT Series is ideal for applications requiring high current and high-temperature performance, ensuring robust protection under demanding conditions. FSMDH Series The FSMDH Series by Fuzetec offers compact and reliable overcurrent protection for various electronic applications. Key specifications include: Operation Current: 0.05A~1.10A Maximum Voltage: 6V~30VDC Temperature Range: -40℃ to 125℃ This series is well-suited for consumer electronics and other devices requiring reliable protection in a compact form factor. Compliance with AEC-Q200 Fuzetec's PPTC resettable fuses are fully compliant with the AEC-Q200 standard. This compliance ensures that their fuses have undergone and passed rigorous stress tests, proving their capability to withstand the harsh conditions of automotive applications. The AEC-Q200 standard guarantees that Fuzetec's fuses will perform reliably, even in extreme environments, providing consistent protection for automotive electronics. Applications in Automotive Industry In automotive systems, from power management to infotainment and safety systems, the reliability of electronic components is critical. Fuzetec's AEC-Q200 compliant PPTC resettable fuses offer robust protection against overcurrent conditions, ensuring the safety and functionality of these systems throughout the vehicle’s lifespan. These fuses are particularly valuable in applications where reliability and longevity are essential, such as in advanced driver-assistance systems (ADAS) and electric vehicle (EV) battery management systems. The Synergy of IATF 16949 and AEC-Q200 Quality Assurance The combination of IATF 16949 certification and AEC-Q200 compliance provides a comprehensive quality assurance framework for Fuzetec Technology's products. This dual compliance ensures that Fuzetec's PPTC resettable fuses not only meet the highest quality management standards but also perform consistently under extreme conditions. Reliability in Harsh Environments Automotive electronics are exposed to extreme conditions, from under-hood temperatures to constant vibrations. Fuzetec's AEC-Q200 compliant PPTC resettable fuses are tested to ensure they can handle these conditions without degrading in performance. Combined with IATF 16949's emphasis on continuous improvement and defect prevention, these fuses offer unparalleled reliability and safety. Competitive Advantage Manufacturers who achieve compliance with both standards gain a significant competitive edge. This compliance assures automotive OEMs and other high-reliability sectors that the components will perform consistently and safely, reducing the risk of failures and recalls. It also opens up opportunities in markets that demand the highest quality and reliability standards. Case Studies and Real-World Applications Automotive Electronics In automotive systems, from power management to infotainment and safety systems, the reliability of electronic components is critical. Fuzetec's AEC-Q200 compliant PPTC resettable fuses provide robust protection against overcurrent conditions, ensuring the safety and functionality of these systems throughout the vehicle’s lifespan. Industrial and Consumer Electronics While primarily focused on automotive applications, the benefits of these standards extend to industrial and consumer electronics. Devices in these sectors also face harsh conditions and require reliable protection. Using Fuzetec's PPTC resettable fuses that meet these stringent standards ensures operational stability and reduces downtime due to electrical faults. Real-World Examples Several manufacturers have successfully integrated Fuzetec's AEC-Q200 and IATF 16949 compliant PPTC resettable fuses into their products, leading to enhanced reliability and customer satisfaction. For instance, in automotive infotainment systems, these fuses protect sensitive circuits from overcurrent damage, ensuring continuous operation even in challenging environments. Conclusion The integration of AEC-Q200 and IATF 16949 standards in the manufacturing of Fuzetec Technology's PPTC resettable fuses is crucial for ensuring the highest levels of reliability and safety in automotive applications. These standards provide a comprehensive framework for testing and quality management, ensuring that components can withstand harsh conditions and perform consistently. Manufacturers that achieve compliance with both standards not only enhance their market competitiveness but also contribute to the overall safety and longevity of automotive electronic systems.

Introduction In international trade, accurate product classification is efficient operations. The Harmonized System (HS) code provides a globally standardized method for categorizing traded goods. This article delves into HS code 8533.21.00.90-6, specifically for resettable fuses, which have a power limit of 20 watts. We also highlight how Fuzetec PPTC resettable fuses comply with all relevant regulations. What are HS Codes? HS codes are used internationally to classify products in trade. These codes help determine tariffs, taxes, and duties, ensuring efficient customs processing. Maintained by the World Customs Organization (WCO), the HS code system is utilized by over 200 countries, facilitating global trade and standardization. Breaking Down HS Code 8533.21.00.90-6 HS Code Structure Each part of an HS code provides detailed information about the product: 85:Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles. 33:Electrical resistors (including rheostats and potentiometers), other than heating resistors. 21:Other fixed resistors. 00:Further classification. 90-6:Additional specificity for resettable fuses. Power Limitation of 20 Watts Importance of Power Rating For resettable fuses under HS code 8533.21.00.90-6, the power rating is a vital specification. This rating, measured in watts, is the maximum power the device can handle without damage. Resettable fuses in this category are limited to a power rating of 20 watts or less. Why the Power Limit matters? Safety:Operating within the power rating prevents overheating and reduces safety risks. Performance:Ensuring the device operates within its power limit guarantees reliable protection. Compliance:Adhering to power specifications is often required by regulations, especially in critical safety applications. Why HS code are so important? Accurate HS code classification and regulatory compliance are essential when trading resettable fuses. Fuzetec PPTC resettable fuse products fully comply to international standards, ensuring: Efficient Customs Clearance:Correct coding and documentation streamline customs processing. Legal Compliance:Our products meet global regulatory requirements, reducing the risk of fines and penalties. Trust and Reputation:Compliance enhances our reputation with trade partners and regulatory bodies. Global Trade Implications The correct use of HS code 8533.21.00.90-6 is important for: Determining applicable tariffs and duties Ensuring compliance with trade agreements Facilitating international transactions successes Resettable Fuse Products: Technical Overview How Resettable Fuses Work? Resettable fuses are important for overcurrent protection in electrical circuits. They automatically limit the current flow to prevent damage happens. When detecting high current or temperature, the resettable fuse increases its resistance, thereby limiting the current. Once the fault is cleared, these devices reset, making them perfect for various applications. Key Features Self-resetting capability No need for replacement Rapid response to overcurrent events Suitable for repeated use Applications PPTC Resettable fuses are used in: Automotive electronics Consumer electronics (smartphones, doorbells,TWS(True Wireless Stereo)) Telecommunications infrastructure Medical devices Home appliances AI equipments protection like Photoelectric Sensors for MES (Manufacturing execution systems) Compliance and Standards International Standards Our resettable fuses comply with key international standards: UL 1434 for safety of resettable fuses IEC 60738-1 for thermistors RoHS, REACH(SVHC) and HALOGEN-Free for environmental regulations Market Outlook The global resettable fuse market is projected to grow at a CAGR of 3.5% from 2021 to 2026, driven by increasing demand in automotive and consumer electronics sectors (Source: Market Research Future, 2021). FAQs 1. What's the difference between a resettable fuse and a conventional fuse? Resettable fuses and conventional fuses both protect circuits from overcurrent but operate differently. A conventional fuse is a single-use device that permanently breaks the circuit when the current exceeds a limit, requiring replacement. In contrast, resettable fuses automatically increase their resistance to limit current flow when a fault is detected and reset themselves once the fault is cleared, allowing for repeated use without replacement, which is also very eco-friendly. 2. How do environmental factors affect resettable fuse performance? Environmental factors like temperature, humidity, and exposure to chemicals can impact resettable fuse performance. High ambient temperatures may cause the fuse to trip at lower current levels, as it relies on heat buildup to function. Exposure to moisture or harsh chemicals can degrade the fuse over time. It is crucial to select resettable fuses rated for the environmental conditions they will encounter. 3. Are resettable fuses suitable for aerospace applications? Resettable fuses can be used in aerospace applications but must meet stringent safety and reliability standards due to the demanding conditions. Many resettable fuses are designed for consumer electronics, but Fuzetec PPTC Resettable Fuses product had been tested by Outgassing test and rated for high reliability, extreme temperatures, and vibration resistance for aerospace applications. Ensure that the resettable fuses meet the aerospace industry's regulatory and performance standards. Understanding PPTC Resettable Fuses Qualified for Outgassing Test ECSS-Q-ST-70-02C and Thermal Cycling Test Conclusion Understanding HS code 8533.21.00.90-6 and its 20-watt power limit is crucial for those involved in trading resettable fuses. These devices offer unique advantages in circuit protection, combining safety, reliability, reusability and eco-friendly. We are dedicated to ensuring our products meet all relevant regulations, providing safe and reliable solutions to our customers. Maximize the Benefits of Our Regulation-Compliant Resettable Fuses! Looking for high-quality, regulation-compliant resettable fuses? Contact us today to learn more about our resettable fuse series, request a sample, or receive expert advice.Contact Us Today to ensure your projects meet all safety and compliance standards!

Introduction In the age of smart technology, robot vacuum cleaners have become an essential household appliance. These devices, powered by advancements in artificial intelligence, sensor techniques, and mobile robotics, offer a convenient solution for maintaining clean floors with minimal human intervention. However, ensuring the safety and reliability of these autonomous machines is crucial. One of the most effective ways to protect robot vacuum cleaners from electrical and mechanical failures is by using PPTC (Polymeric Positive Temperature Coefficient) resettable fuses, commonly known as PPTC devices. This article explores the importance of PPTC resettable fuses in enhancing the safety and functionality of smart robot vacuum cleaners. Understanding PPTC Resettable Fuses What is a PPTC Resettable Fuse? A PPTC resettable fuse is a circuit protection device that limits the flow of excessive current during fault conditions. Unlike traditional fuses, PPTC devices are self-resetting. Once the fault is cleared, the device returns to its normal state, allowing current to flow again. This resettable feature reduces downtime and maintenance costs, making PPTC fuses an ideal choice for smart robot vacuum cleaners. Advantages of PPTC Resettable Fuses Self-Resetting:PPTC devices automatically reset after a fault is cleared, eliminating the need for manual replacement. Low Resistance:Ensures minimal disruption to the circuit during normal operation. Rapid Response Time:Provides quick protection against overcurrent conditions. Versatility:Available in various forms such as radial-leaded, surface-mount, and strap devices, suitable for different applications. Longevity and EMI Reduction:Offers a longer service life and reduced electromagnetic interference compared to traditional dual-metal breakers. Key Applications of PPTC Resettable Fuses in Smart Robot Vacuum Cleaner Motor Protection Smart robot vacuum cleaners rely on multiple motors for movement and cleaning functions. These motors can become entangled with debris like hair or wires, causing them to stall. Stalled motors can overheat, leading to potential damage and failure. PPTC resettable fuses provide effective protection by interrupting the current flow during fault conditions, preventing overheating and ensuring the motor's longevity. Example: Driving-Wheel Motor Protection Driving-wheel motors are critical for the movement of smart robot vacuum cleaners. They require protection to prevent overheating and damage during stall conditions. Requirements: Maximum working current: 0.3A Operating temperature range: 10°C to 50°C Maximum battery voltage: 22.5V Solution:Fuzetec FSMD050-30-R device is ideal for this application. It can sustain a current of 0.39A at 50°C and provides a protection response time of 3 seconds, which is well within the 10-second requirement for stalled motor protection. Fuzetec FSMD1812 Series Example: Dust-Removal Motor Protection Dust-removal motors operate at higher currents and require robust protection to prevent damage during fault conditions. Requirements: Maximum working current: 2.9A Maximum voltage: 22.5V Solution:Fuzetec Radial Leaded PPTC FRU400-30F device is suitable for dust-removal motors. It can hold a current of 3.04A at 50°C and offers a protection response time of 6 seconds, meeting the safety standards for stalled motor protection. Fuzetec Radial-Leaded FRU Series Power-Charging Port and Battery Protection Smart robot vacuum cleaners often return to their charging stations automatically when their battery levels are low. The charging ports, being exposed, need protection against short circuits and other electrical failures. PPTC resettable fuses provide reliable protection by interrupting excessive current flow during fault conditions. Charging Port Circuit Protection:Radial-leaded PPTC devices with rated values of 16VDC, 24VDC, or 30VDC are well-suited for protecting the charging ports of smart robot vacuum cleaners. Battery Protection:Rechargeable batteries, whether nickel-cadmium, lithium, or polymer, require protection against overcurrent and overcharging conditions. PPTC devices ensure safe battery operation by preventing abnormal charging or discharging currents and monitoring the battery core temperature to avoid overcharging. How PPTC Resettable Fuses Work Principle of Operation PPTC resettable fuses operate based on the PTC (Positive Temperature Coefficient) effect. When a fault condition occurs, such as an overcurrent, the temperature of the PPTC material increases. This rise in temperature causes the resistance of the PPTC material to increase significantly, thereby limiting the current flow and protecting the circuit. Once the fault condition is resolved and the temperature decreases, the resistance returns to its normal low state, allowing the current to flow again. Specifying PPTC Resettable Fuses Selecting the appropriate PPTC Resettable Fuses involves several key steps: Determine Maximum Working Current and Voltage:Identify the maximum current and voltage that the device needs to handle. Calculate Resistance Limits:Determine the upper (R1max) and lower (Rmin) resistance limits of the PPTC devices. Consider Physical Dimensions:Ensure the selected device fits within the space requirements of the design. Perform Verification Tests:Test the response time and effectiveness of the device under fault conditions to ensure it meets the necessary protection standards. Preventing Stalled Motors Preventing motor stalls is essential for maintaining the functionality and reliability of smart robot vacuum cleaners. Stalled motors can cause rapid temperature rise and potential damage. PPTC devices provide effective protection by interrupting the current flow within a specified response time, preventing overheating and motor failure. Compliance with IEC/EN 60950 Standards The IEC/EN 60950 standard specifies the general requirements for the safety of information technology equipment, including smart robot vacuum cleaners. It includes guidelines for preventing electrical hazards, thermal hazards, and fire risks. In the context of motor protection, IEC/EN 60950 Clause 5.3.2 outlines the requirements for preventing overloading and overheating of motors. By incorporating PPTC devices, manufacturers can ensure that their smart robot vacuum cleaners comply with these safety standards, providing an additional layer of protection and reliability for end-users. IEC/EN 60950 requires that protective devices, such as PPTC resettable fuses, must be able to interrupt the current flow within a certain timeframe to prevent overheating and potential fires. These standards help ensure that the smart robot vacuum cleaners operate safely even in fault conditions, reducing the risk of damage to the device and the property. Conclusion PPTC resettable fuses are vital components in ensuring the safety and reliability of smart robot vacuum cleaners. By providing overcurrent protection and automatically resetting after fault conditions, these devices help maintain optimal performance and extend the lifespan of these autonomous cleaners. Fuzetec offers a comprehensive range of PPTC devices tailored to meet the specific needs of smart robot vacuum cleaners, ensuring peace of mind for both manufacturers and consumers.

Introduction In the rapidly advancing field of healthcare technology, portable medical devices have become essential tools. These devices, such as blood glucose meters, digital thermometers, and portable manometers, are crucial for real-time health monitoring. Ensuring their reliability and safety is of utmost importance. This article explores the critical role of PPTC (Polymeric Positive Temperature Coefficient) resettable fuses, also known as PPTC devices, in enhancing the performance and durability of portable medical devices. Understanding PPTC Resettable Fuses PPTC resettable fuses are polymer-based devices designed to protect electronic circuits from overcurrent conditions. Unlike traditional fuses, which need to be replaced after a single use, PPTC devicess can reset themselves after the fault condition is removed. This resettable feature makes them highly suitable for applications where reliability and maintenance are critical. How PPTC Resettable Fuses Work PPTC resettable fuses operate based on the principle of positive temperature coefficient of resistance. Under normal operating conditions, the PPTC device maintains a low resistance, allowing current to flow freely. When an overcurrent or short circuit occurs, the device heats up, causing its resistance to increase dramatically. This high resistance limits the current flow, effectively protecting the circuit. Once the fault condition is cleared and the device cools down, it returns to its low-resistance state, ready to protect the circuit again. Importance of Circuit Protection in Portable Medical Devices Portable medical devices are subject to various electrical hazards, including overcurrent, short circuits, and electrostatic discharge (ESD). These hazards can lead to device malfunction, inaccurate readings, or even complete failure. Given the critical nature of these devices in patient care, robust circuit protection is essential to ensure their reliability and safety. Overcurrent and Short Circuit Protection Overcurrent conditions can arise from several factors, such as battery malfunctions, power supply issues, or user errors. In portable medical devices, overcurrent can cause overheating, component damage, or fire hazards. PPTC resettable fuses protect against these risks by limiting the current flow during fault conditions, preventing damage to the device and ensuring patient safety. Electrostatic Discharge (ESD) Protection Portable medical devices often feature touchscreens, buttons, and other interfaces that can accumulate static electricity. ESD can damage sensitive electronic components, leading to device failure. PPTC devices, combined with other ESD protective devices, help shield these components from ESD, enhancing device reliability. Benefits of Using PPTC Resettable Fuses in Portable Medical Devices The integration of PPTC resettable fuses in portable medical devices offers numerous advantages, contributing to the overall safety, reliability, and cost-effectiveness of these critical healthcare tools. Enhanced Reliability PPTC resettable fuses provide consistent and reliable protection against overcurrent and short circuits. Their ability to reset after fault conditions ensures continuous protection without the need for replacement, reducing downtime and maintenance efforts. Cost-Effectiveness The resettable nature of PPTC devices eliminates the need for frequent replacements, making them a cost-effective solution for long-term device protection. This feature is particularly beneficial in healthcare settings where device reliability and uptime are crucial. Compact and Versatile Design PPTC devices are available in various sizes and form factors, allowing for flexible integration into different portable medical devices. Their compact design helps save valuable board space, accommodating the miniaturization trend in medical technology. Compliance with Safety Standards PPTC resettable fuses help manufacturers comply with stringent safety standards and regulations. These devices are often UL, CSA, and TÜV recognized, ensuring that portable medical devices meet the necessary safety and performance requirements. Applications of PPTC Resettable Fuses in Portable Medical Devices PPTC resettable fuses are widely used in various portable medical devices, providing essential protection across multiple applications. Blood Glucose Meters Blood glucose meters are vital for diabetes management, providing patients with critical information about their blood sugar levels. PPTC devices protect these devices from overcurrent and ESD, ensuring accurate readings and reliable operation. Digital Thermometers Digital thermometers are commonly used in homes and healthcare settings to monitor body temperature. PPTC devices safeguard these devices from electrical faults, enhancing their reliability and longevity. Portable Manometers Portable manometers are used to measure blood pressure and other vital signs. By incorporating PPTC devices, these devices are protected from overcurrent and short circuits, ensuring precise measurements and patient safety. Wearable Medical Devices Wearable medical devices, such as fitness trackers and heart rate monitors, are increasingly popular for continuous health monitoring. PPTC devices help protect these devices from electrical hazards, contributing to their safe and effective use. Case Study: Enhancing Reliability of Portable Medical Devices with Fuzetec PPTC Fuses Fuzetec, a leading manufacturer of circuit protection devices, offers a comprehensive range of PPTC resettable fuses designed specifically for portable medical devices. These devices leverage innovative technology to provide superior protection and reliability. Features of Fuzetec PPTC Resettable Fuses Fuzetec PPTC REsettable Fuses are engineered to meet the demanding requirements of portable medical devices. Key features include: Resettable Protection: Ensures continuous device protection without the need for replacement. Low Resistance: Minimizes power loss and enhances device performance. Fast Response Time: Quickly limits current flow during fault conditions, preventing damage. Compact Design: Suitable for space-constrained applications. Benefits of Using Fuzetec PPTC Resettable Fuses The use of Fuzetec PPTC Resettable Fuses in portable medical devices offers several benefits: Improved Device Uptime: Reduced need for maintenance and replacements ensures higher device availability. Enhanced Safety: Reliable protection against electrical hazards reduces the risk of device failure and potential harm to patients. Regulatory Compliance: Fuzetec PPTC Resettable Fuses help manufacturers meet safety standards, ensuring device certification and market acceptance. Real-World Application: Portable Blood Glucose Meter A leading manufacturer of portable blood glucose meters integrated Fuzetec PPTC Resettable Fuses into their devices. This integration resulted in: Increased Device Reliability: The PPTC fuses provided consistent protection against overcurrent and ESD, reducing device failures. Cost Savings: The resettable nature of the fuses minimized the need for replacements, lowering maintenance costs. Enhanced Patient Safety: Reliable device operation ensured accurate blood glucose readings, critical for effective diabetes management. Conclusion PPTC resettable fuses, or PPTC devices, play a vital role in enhancing the safety, reliability, and longevity of portable medical devices. Their ability to provide resettable protection against overcurrent, short circuits, and ESD makes them an essential component in the design of modern healthcare technology. By integrating PPTC devices from trusted manufacturers like Fuzetec, medical device manufacturers can ensure their products meet the highest standards of safety and performance, ultimately contributing to better patient care and outcomes. In summary, the use of PPTC resettable fuses in portable medical devices is a smart choice for ensuring device reliability, reducing maintenance costs, and enhancing patient safety. As the demand for portable medical devices continues to grow, the importance of robust circuit protection solutions like PPTC devices cannot be overstated.

Introduction In the rapidly evolving world of automotive electronics, ensuring safety and reliability is the top priority. One crucial component contributing to these aspects is the PPTC (Polymeric Positive Temperature Coefficient) resettable fuse. These fuses have become essential in protecting automotive electronic circuits, providing numerous advantages over traditional fuses. This article explores the applications, benefits, and future potential of PPTC resettable fuses in the automotive industry. Understanding PPTC Resettable Fuses What are PPTC Resettable Fuses and How Do They Work? PPTC resettable fuses are circuit protection devices that protect electronic circuits from overcurrent conditions. Unlike traditional fuses, which must be replaced after a single use, PPTC fuses can reset themselves after the fault current is removed. PPTC resettable fuses operate based on a positive temperature coefficient characteristic. Under normal operating conditions, the device exhibits low resistance, permitting current to pass through with minimal voltage drop. During an overcurrent event, the increase in current causes the device to heat up. As the temperature rises, the polymer matrix expands, increasing the resistance exponentially and reducing the current flow to a safe level. This self-resetting feature allows the fuse to return to its original state once the overcurrent condition is resolved and the device cools down. Applications of PPTC Resettable Fuses in Automotive Electronics Protecting In-Car Entertainment Systems Modern vehicles are equipped with advanced in-car entertainment systems that include multimedia interfaces, audio systems, and navigation units. These systems require reliable protection against overcurrent conditions that could arise from faults in wiring or component failures. PPTC resettable fuses provide an ideal solution, offering continuous protection without the need for replacement after each incident. This ensures that the entertainment systems remain operational and safe, enhancing the user experience. Safeguarding Advanced Driver Assistance Systems (ADAS) Advanced Driver Assistance Systems (ADAS) are crucial for enhancing vehicle safety and driving convenience. These systems include features like adaptive cruise control, lane departure warning, and collision avoidance. The electronic components of ADAS are sensitive and require robust protection to maintain their functionality and reliability. PPTC resettable fuses protect these systems by preventing damage from electrical faults, ensuring the continuous operation of safety-critical features. Enhancing Battery Management Systems Battery Management Systems (BMS) are essential for monitoring and controlling the performance of automotive batteries, especially in electric and hybrid vehicles. BMS components must be protected from overcurrent conditions that could result from short circuits or other electrical anomalies. PPTC resettable fuses offer reliable protection, ensuring the longevity and safety of the battery system. Their resettable nature means that the BMS can recover quickly from faults without the need for manual intervention. Securing Electronic Control Units (ECUs) Electronic Control Units (ECUs) are the brains behind various automotive functions, controlling everything from engine management to transmission systems. These units are highly sensitive to overcurrent conditions, which can lead to malfunction or permanent damage. By incorporating PPTC resettable fuses, manufacturers can provide robust protection for ECUs, enhancing the reliability and durability of critical vehicle systems. Protecting Lighting Systems Automotive lighting systems, including headlights, tail lights, and interior lighting, are vital for vehicle safety and aesthetics. These systems are prone to electrical faults due to wiring issues or component failures. PPTC resettable fuses ensure that any overcurrent condition is quickly addressed, protecting the lighting components from damage and maintaining their functionality. This is particularly important for LED lighting systems, which are increasingly used in modern vehicles due to their efficiency and longevity. Benefits of Using PPTC Resettable Fuses in Automotive Electronics Improved Safety and Reliability PPTC resettable fuses enhance the safety and reliability of automotive electronics by providing consistent protection against overcurrent conditions. Their ability to reset after a fault condition means that systems can recover quickly without manual intervention, reducing downtime and maintenance efforts. Cost-Effectiveness Unlike traditional fuses that require replacement after each overcurrent incident, PPTC resettable fuses are reusable. This significantly reduces the cost associated with fuse replacement and maintenance, leading to long-term savings for both manufacturers and vehicle owners. Space and Weight Reduction PPTC resettable fuses are compact and lightweight, making them ideal for use in the increasingly crowded and weight-sensitive environments of modern vehicles. Their small size allows for more efficient use of space, which is particularly beneficial in applications where space is at a premium. Enhanced System Longevity By protecting sensitive electronic components from overcurrent damage, PPTC resettable fuses contribute to the overall longevity of automotive systems. This ensures that vehicles remain functional and reliable over their lifespan, enhancing customer satisfaction and brand reputation. Future Trends and Developments Integration with Smart Systems As automotive technology advances, there is a growing trend towards integrating smart systems that can communicate with each other and the vehicle's central control unit. PPTC resettable fuses are expected to evolve to include smart features, allowing for real-time monitoring and diagnostics of overcurrent conditions. This will enable more proactive maintenance and enhance the overall safety of the vehicle. Increased Adoption in Electric and Autonomous Vehicles The rise of electric and autonomous vehicles presents new challenges and opportunities for PPTC resettable fuses. These vehicles rely heavily on advanced electronics and require robust protection to ensure safe and reliable operation. The versatility and effectiveness of PPTC resettable fuses make them well-suited for these applications, and their adoption is expected to increase as the market for electric and autonomous vehicles grows. Development of High-Performance Materials Ongoing research and development in materials science are likely to lead to the creation of high-performance PPTC materials with enhanced electrical and thermal properties. These advancements will further improve the performance, reliability, and durability of PPTC resettable fuses, making them even more effective in protecting automotive electronics. Conclusion PPTC resettable fuses play a critical role in safeguarding the complex and sensitive electronic systems found in modern vehicles. Their ability to provide reliable, reusable protection against overcurrent conditions makes them an invaluable component in automotive electronics. From enhancing the safety of ADAS to ensuring the longevity of battery management systems, PPTC resettable fuses offer numerous benefits that contribute to the overall performance and reliability of vehicles. As the automotive industry continues to evolve, the adoption and development of PPTC resettable fuses are expected to grow, driven by advancements in technology and the increasing demand for safe, reliable, and sustainable vehicles. By understanding and leveraging the capabilities of PPTC resettable fuses, automotive manufacturers can enhance the performance and safety of their vehicles, ultimately delivering a better driving experience for consumers.

Introduction • Importance of automotive electronics and industrial control as Fuzetec’s top markets • EV transition to 48V systems and demand for 240–305Vac charging infrastructure • Industry 4.0 automation, AI, and the need for high-frequency semiconductor switching Power Semiconductors Overview Role of Power Semiconductors • Core function in power conversion, energy management, motor control • High-voltage, high-current switching with efficiency optimization Major Categories of Power Semiconductors • Diodes – rectification (AC to DC) • Transistors – high-power AC control • MOSFET – low-voltage, high-frequency switching • IGBT – high-voltage, high-power efficiency • Wide Bandgap (GaN / SiC) – high-efficiency power conversion, EV charging, 5G base stations Everyday Analogy for Understanding • MOSFET as faucet switch (low-voltage control) • Diode as check valve (direction control) • IGBT as dam gate (large current control at high voltage) Wide Bandgap Semiconductors – GaN and SiC Material Characteristics • SiC: 1000V–1200V, high thermal conductivity, high cost, suitable for high-voltage EV/renewable • GaN: 80V–650V (expanding toward 800V), lower cost, ideal for consumer fast charging and mid-voltage markets Market Applications • SiC – EV systems, solar inverters, wind converters, 5G base stations • GaN – smartphones, laptops (fast charging), data centers, industrial equipment, EV OBC/DC-AC converters Industry Developments • Tesla adoption and reduced SiC content, shifting spotlight to GaN • PI’s launch of 750V–900V GaN solutions for unstable power regions and automotive use • Forecast: GaN to capture sub-650V MOSFET market from 2025 onward Fuzetec’s Technological Breakthroughs and Market Strategy AC Voltage Series • First-to-market DIP FRV 277Vac & 305Vac, SMD 240Vac • Achieved international safety certifications • Roadmap: 380Vac / 440Vac development • Applications: EV charging, industrial automation, renewable energy, rail systems High-Temperature Series • DIP & SMD products from –40°C to 125°C • Applications: automotive ECUs, semiconductor modules, 5G base stations, thermal modules Hybrid Protection Components • OCP + OVP integration: PPTC + MOV, PPTC + TVS, PPTC + MOSFET • Function: strengthen semiconductor protection, extend lifetime, mitigate electrical surge failures • Applications: EV systems, mid-/low-voltage industrial modules, charging stations, PLC I/O control Market Outlook and Strategic Adjustments Growth Drivers • Digital transformation fueling semiconductor adoption • AI, IoT, and blockchain driving higher power efficiency demands • Wide bandgap adoption reshaping automotive, renewable, and industrial sectors Fuzetec’s Future Roadmap • Positioning power semiconductors as core solutions in automotive/industrial • Leveraging protection component expertise to develop hybrid solutions • Strategy: proactive R&D and global certifications for long-term competitiveness Conclusion • Fuzetec as a pioneer in protection components expanding into power semiconductors • Integration of wide bandgap technologies (GaN / SiC) for high-performance markets • Delivering stable, efficient, and reliable solutions for EV, industrial automation, and 5G • Fuzetec’s commitment to innovation ensures customer-centric, next-generation semiconductor solutions Discover how Fuzetec’s MOSFET, GaN, and SiC solutions can enhance your automotive and industrial designs. Contact us for technical consultation and product samples.

Introduction In the manufacturing process of PPTC (Polymeric Positive Temperature Coefficient) Resettable Fuse, the mixing of polymer materials and conductive fillers is a critical step. This process directly affects the performance, reliability, and stability of PPTC Resettable Fuse. This document provides a detailed overview of the mixing procedure and its significance. Selection of Polymer Materials Role of Polymers in PPTC Resettable Fuse The polymer matrix in PPTC Resettable Fuse is typically composed of high-molecular polymers with thermal sensitivity. These materials expand and increase in resistance as the temperature rises, enabling the overcurrent protection function. Selection of Conductive Fillers Impact of Conductive Fillers on PPTC Resettable Fuse Performance Conductive fillers generally include materials such as carbon black and metal carbides. These fillers provide excellent electrical conductivity, effectively reducing the resistance of the compound. The type and proportion of fillers directly influence the electrical characteristics and response speed of the PPTC Resettable Fuse. Mixing Process Steps Material Preparation Before mixing, both the polymer material and conductive fillers must be prepared. Polymers are usually provided in granule or powder form, while conductive fillers should be of uniform particle size and exhibit good dispersibility. Use of High-Efficiency Mixing Equipment Mixing is typically performed using high-efficiency equipment such as twin-screw extruders or high-speed mixers. These machines provide sufficient shear force and kinetic energy to achieve uniform dispersion of materials. Detailed Mixing Process • Pre-mixing: Polymer materials and conductive fillers are introduced into the mixing equipment in designed ratios for initial blending, ensuring preliminary uniform distribution. • Melt mixing: Under elevated temperatures, the polymer melts and further combines with the conductive filler. The shear force generated by the equipment disperses the filler evenly, forming a conductive molten compound. • Homogenization: The molten compound undergoes multiple cycles of mixing and extrusion to achieve optimal uniformity. This step prevents agglomeration of conductive fillers within the polymer matrix, ensuring stable performance of the PPTC Resettable Fuse. Cooling and Solidification After mixing, the molten compound is cooled and solidified into solid material. At this stage, the material exhibits the required thermal sensitivity and conductivity for PPTC Resettable Fuse, ready for subsequent molding and processing. Quality Control and Inspection Standards and Methods Quality control is crucial throughout the mixing process. Thermogravimetric Analysis (TGA) is applied to determine filler content, verify mixing status, and ensure that the material meets the required resistance characteristics. Adjustment and Optimization Based on inspection results, necessary process adjustments and optimizations are implemented to guarantee that the final product achieves the specified performance and quality standards. Conclusion The mixing of polymer materials and conductive fillers is a vital stage in PPTC Resettable Fuse manufacturing. By selecting appropriate materials, employing high-efficiency mixing equipment and processes, and conducting rigorous quality control, manufacturers can produce PPTC Resettable Fuse with stable and reliable performance. These components are widely applied in electronic systems for overcurrent protection, ensuring efficient operation and adaptability across diverse environments. Through this comprehensive overview of the mixing process, enterprises and engineers can better understand how to improve the manufacturing quality of PPTC Resettable Fuse, thereby gaining a competitive advantage in the market. Discover how Fuzetec’s PPTC Resettable Fuse solutions can enhance your electronic designs. Contact us for samples and technical support.

Introduction Fuzetec PPTC resettable fuses have become integral components in the automotive industry, offering long-term reliability and enhancing the safety and performance of electric vehicles (EVs), hybrid vehicles, and traditional vehicles. Renowned automakers such as Tesla, Ford, Hyundai/Kia Motors, and BYD utilize these advanced fuses to protect critical electronic systems, ensuring that their vehicles meet high safety standards. This article explores how Fuzetec PPTC resettable fuses improve automotive design and safety across different vehicle types. Fuzetec PPTC Resettable Fuses in Electric Vehicles (EVs) Tesla: Advancing Safety and Reliability Tesla is at the forefront of the EV market, known for its innovative technology and commitment to safety. One of the key components that contribute to Tesla's reliability is the Fuzetec PPTC resettable fuse. These fuses are used to protect the car seat and lumbar support motors against lock-up protection, ensuring that passengers remain safe and comfortable. Protecting Critical Systems Fuzetec PPTC resettable fuses provide overcurrent protection, which is crucial for preventing electrical failures. In Tesla vehicles, these fuses safeguard against potential overcurrent conditions, reducing the risk of motor lock-up and ensuring the continuous operation of critical systems. This not only enhances passenger safety but also contributes to the overall reliability of the vehicle. Fuzetec PPTC Resettable Fuses in Hybrid Vehicles Ford: Transitioning to a Safer Future Ford, a traditional automaker, is making significant strides in transitioning to electric and hybrid vehicles. To ensure the safety and reliability of their modern vehicles, Ford integrates advanced electronic components, including Fuzetec PPTC resettable fuses. Ensuring System Reliability Fuzetec PPTC resettable fuses play a vital role in protecting Ford's electrical systems. These fuses provide reliable overcurrent protection, which is essential for maintaining the safety and functionality of advanced driver-assistance systems (ADAS) and other critical electronic components. By incorporating these fuses, Ford enhances the safety and reliability of their hybrid vehicles, making them a trusted choice for consumers. Fuzetec PPTC Resettable Fuses in Traditional Vehicles Hyundai/Kia Motors: Safeguarding Charging Systems Hyundai and Kia Motors continue to innovate and improve the safety and reliability of their vehicles, whether they are traditional, hybrid, or electric. A critical aspect of their strategy is the use of Fuzetec PPTC resettable fuses, MOSFETs, and ESD protection. Protecting USB PD Data Link Chargers In Hyundai and Kia vehicles, Fuzetec PPTC resettable fuses are used to protect USB PD data link chargers. These fuses provide essential overcurrent protection, ensuring that the charging systems operate safely and effectively. This protection is crucial for maintaining the reliability of the charging systems, which are vital for the operation of modern vehicles. By utilizing these advanced fuses, Hyundai and Kia enhance the overall safety and reliability of their vehicles. Fuzetec PPTC Resettable Fuses in BYD Electric Vehicles BYD (Build Your Dreams): Ensuring Longevity and Safety BYD, a leading manufacturer of electric vehicles, prioritizes the safety, durability, and longevity of their products. To achieve these goals, BYD integrates Fuzetec PPTC resettable fuses into their headlight protection systems. Enhancing Headlight Durability Fuzetec PPTC resettable fuses provide overcurrent protection for BYD's headlights, ensuring that they remain functional and safe even under challenging conditions. This protection reduces maintenance costs and enhances the durability and longevity of the headlights, contributing to the overall safety of BYD vehicles. By utilizing these fuses, BYD ensures that their EVs offer a reliable and safe driving experience for their customers. Advantages of Fuzetec PPTC Resettable Fuses Fuzetec PPTC resettable fuses offer numerous advantages over traditional fuses, making them an ideal choice for automotive applications. Here are some of the key benefits: Automatic Reset Functionality One of the primary advantages of Fuzetec PPTC resettable fuses is their ability to automatically reset after a fault is cleared. Unlike traditional fuses, which need to be replaced after a fault, PPTC resettable fuses can restore themselves, reducing downtime and maintenance costs. This feature is particularly beneficial in automotive applications, where continuous operation is critical. Reliable Overcurrent Protection Fuzetec PPTC resettable fuses provide reliable protection against overcurrent and short-circuit conditions. This protection is essential for maintaining the safety and functionality of critical electronic systems in vehicles. By preventing electrical failures, these fuses help ensure the continuous operation of advanced automotive systems, such as ADAS and motor lock-up protection. Enhanced Durability and Longevity By protecting essential electronic components, Fuzetec PPTC resettable fuses enhance the durability and longevity of vehicles. This protection reduces the risk of component failure, extending the lifespan of critical systems and reducing maintenance costs. Automakers can rely on these fuses to improve the overall reliability of their vehicles, making them a valuable asset in automotive design. Cost Efficiency The use of Fuzetec PPTC resettable fuses provides a cost-effective solution for automakers and vehicle owners. The automatic reset functionality reduces the need for manual fuse replacement, lowering maintenance costs and minimizing vehicle downtime. Additionally, the reliable protection offered by these fuses reduces the risk of costly electrical failures, making them a smart investment for automotive manufacturers. Conclusion Fuzetec PPTC resettable fuses are transforming the automotive industry by enhancing the design and safety of electric, hybrid, and traditional vehicles. Their ability to provide automatic reset functionality, reliable overcurrent protection, and enhanced durability makes them an invaluable component for modern automotive applications. Renowned automakers like Tesla, Ford, Hyundai/Kia Motors, and BYD rely on these advanced fuses to protect critical systems and ensure the safety and reliability of their vehicles. As the automotive industry continues to evolve towards more advanced and sustainable technologies, the role of Fuzetec PPTC resettable fuses will become increasingly important. By integrating these fuses into their designs, automakers can achieve higher safety standards, improve vehicle reliability, and reduce maintenance costs, ultimately driving the industry towards a safer and more sustainable future. Find out more about Fuzetec Automotive PPTC Resettablefuse Solutions, and customized products.

Competitors’ Multiple-Pulse disc varistor, 14 mm 471, can only survive 20 pulses @ 3.0KA (8/20us), while Fuzetec FMOV14471-U-M can hold up to 300 pulses at least. Below is the comparison of Pulse Rating Curves. Spec download

In an era of thinner, lighter devices with digital/AV convergence, higher data rates, and larger capacities, protection components must simultaneously deliver high AC withstand capability, compact size, and reusable, eco-friendly performance aligned with energy-saving and carbon-reduction goals. FUZETEC’s first-of-its-kind FCMOV (current-protective hybrid overvoltage protection technology) integrates a Resettable Fuse (PPTC) and a Metal Oxide Varistor (MOV) into a single device. It provides combined overvoltage/overcurrent protection and thermal risk mitigation, effectively addressing the traditional MOV pain point of thermal runaway—shorts and catastrophic failure—under surge or sustained abnormal voltage, while significantly lowering maintenance and replacement costs. Background & Direction of Innovation High AC withstand, small footprint, and reusability as the mainstream Driven by miniaturization and high-reliability requirements, protection components must tolerate higher stress in smaller packages and offer reset capability to reduce maintenance cost. Trends: thinner/lighter, digital/AV, and high-speed/high-capacity Future product design is moving toward thinner and lighter builds, digitalization, rich media, and fast/high-capacity data transfer. FUZETEC has invested in developing the innovative FCMOV current-protective hybrid overvoltage technology, pioneering the combination of PPTC (Polymeric Positive Temperature Coefficient) overcurrent protection with MOV overvoltage protection. This approach prevents MOV burn-out caused by surge voltage/current and enables reusability. ESG and Total Cost: sustainability, energy saving, carbon reduction, and total cost of ownership By combining PPTC resettable fuse with an MOV, FCMOV balances Reliability and Total Cost. Its reusability supports sustainability goals (energy saving and carbon reduction), making it a core strategy for next-generation protection. Illustration: FCMOV current-protective hybrid overvoltage protector (PPTC + MOV Risks and Safety Requirements for MOVs under Transient/Sustained Overvoltage Transient overvoltage vs. power-frequency sustained abnormal overvoltage Beyond short transients, MOVs can be exposed to sustained abnormal line voltage. Under prolonged overvoltage/overcurrent conditions (as characterized in UL 1449 safety testing), an MOV can enter thermal runaway, leading to overheating, smoke, and potential fire—posing risks to life and creating exposure to major liability and litigation. Thermal-runaway failure mode and system-level risk In low-voltage systems, the ability of an MOV to withstand power-frequency overvoltage is critical to electrical safety. If the MOV cannot tolerate it, short-circuit and breakdown are likely, causing overheating and possible ignition. Compliance perspective: withstand capability in UL 1449 Products compliant with UL 1449 must provide adequate protection to avoid these failure modes—specifically, sufficient withstand capability under power-frequency overvoltage. Fuzetec Solution — FCMOV Current-Protective Hybrid Overvoltage Protector Device architecture: PPTC (resettable fuse) + MOV (varistor) FCMOV combines a PPTC resettable fuse with an MOV. The hybrid topology provides both overcurrent and overvoltage protection. Under sustained overcurrent/overvoltage, the device trips to a high-resistance state, protecting the MOV and drastically reducing the risk of catastrophic failure. How FCMOV Works During transient overvoltage PPTC: Remains in a low-resistance state, allowing current to pass. MOV: Drops its dynamic resistance, clamps the surge, absorbs transient energy, and dissipates it as heat to limit the overvoltage peak. During sustained/abnormal overvoltage PPTC: Transitions to high resistance (trips), current-limits the MOV and simultaneously shares the voltage across the series path. MOV: Shifts from full load to partial operation; its temperature falls to non-catastrophic levels, preventing thermal runaway/thermal cycling. FCMOV Innovative Features (Key Takeaways) Package & spec highlights 1. Industry-first hybrid overvoltage protector integrating MOV + PPTC (FCMOV). 2. Protects MOVs against surge voltage/current from ~0.001 to >10 s, exceeding typical industry benchmarks. 3. Enables MOV reusability: the PPTC’s reset action protects the MOV so it can withstand multiple events, extending lifetime and reducing maintenance. 4. Radial leaded format using standard MOV disk diameters: 10, 14, and 20 mm. 5. Reduces total protection part count and saves PCB space —supports miniaturization. 6. Cuts design-in time and cost for PPTC-MOV pairing and coordination. 7. Compliant with UL 1449 4CA safety test requirements. 8. 15 invention patents filed; 13 granted (core technologies). FCMOV vs. conventional MOV and TMOV Protection speed & energy handling • FCMOV: MOV provides fast surge clamping; under sustained abnormal conditions, the PPTC current-limits and shares voltage—a dual-mechanism defense. • TMOV (Thermally Protected Varistor / thermally coupled-fuse varistor): Uses an internal thermal fuse for one-time protection. Failure mode & safety margin • FCMOV: Under long-duration stress, the PPTC actively increases resistance, lowering MOV thermal load and mitigating thermal runaway. • MOV: Under sustained overvoltage, thermal accumulation may occur; typically requires external fusing and circuit measures to share the load. Serviceability & Total Cost • FCMOV: Reusable, reducing downtime and replacement frequency. • TMOV: After operation, typically requires replacement (one-time action), leading to higher maintenance cost. Conclusion FCMOV unifies the strengths of a PPTC resettable fuse and an MOV: fast surge clamping, active current-limiting and voltage-sharing under sustained abnormal conditions, reusability, compact footprint, and lower BOM/layout cost. Backed by UL 1449 4CA testing and a robust patent portfolio, FCMOV is a next-generation overvoltage/overcurrent protection solution that balances safety, reliability, and Total Cost across appliances, industrial controls, and automotive power electronics. Learn more: See theFCMOV Product Series.

Fuzetec enhances operational agility through AI data dashboards that unify sales, production, and order management. The Sales Dashboard delivers real-time visibility across applications and regions, enabling faster market insights. The Production Dashboard monitors live WIP status to allocate resources efficiently and minimize downtime. Order Import Automation, processing time is reduced from five hours to under one. Powered by data intelligence, Fuzetec continuously improves operational performance and decision-making speed.

Introduction Automotive applications heavily rely on DC motors for numerous functions such as window lifts, seat adjustments, door locks, and windshield wipers. These motors are selected due to their cost-effectiveness, simplicity in control electronics, and reliability in providing the required mechanical movement. However, automotive motors are subject to challenges such as rotor lock, overload conditions, stall current, and overheating, which can cause system failure or even safety hazards. Incorporating protection solutions is essential to enhance the longevity and reliability of these motors. Fuzetec PPTC (Polymeric Positive Temperature Coefficient) resettable fuses offer an effective and reliable solution to protect automotive DC motors from overheating, stall current issues, and electrical stress. In this article, we will explore how Fuzetec PPTC resettable fuses improve the safety of automotive DC motors by providing overcurrent and thermal protection. Additionally, Fuzetec’s AEC-Q200 compliant PPTC products ensure that their performance meets the rigorous standards required for automotive applications. The Role of DC Motors in Automotive Applications DC motors are integral components of various automotive applications. They are commonly used in: Electric windows Windshield wipers Seat adjustment systems Sunroofs Door locks The primary function of these motors is to convert electrical energy into mechanical movement through a rotor and stator mechanism. While these motors are widely used due to their advantages, they are susceptible to issues such as: Rotor Lock: This occurs when the rotor is mechanically blocked, leading to excessive current flowing through the motor's windings. Overload Conditions: Heavy loads or prolonged use under stressful conditions can lead to overheating and burnout of the motor windings. Stall Current: A high stall current flows when the motor is powered but prevented from rotating, either due to mechanical resistance or a blockage. Stall current can be several times higher than normal operating current, leading to potential overheating or damage to the motor windings. Electromagnetic Interference (EMI): The rotational motion of the motor can generate electromagnetic noise, which may degrade the performance of other sensitive automotive electronics. Addressing these issues requires robust protection components to safeguard the motor and prevent damage. Fuzetec PPTC resettable fuses are a proven solution for providing both overcurrent and thermal protection to automotive motors, ensuring continuous operation without the risk of permanent damage. Protection Solutions for Automotive DC Motors When it comes to protecting automotive DC motors, the primary protection strategies focus on preventing overheating, high stall current, and current surges. Two widely used technologies include: 1. Bimetal Protectors Bimetal protectors rely on a mechanical switch mechanism that disconnects the motor when a thermal overload occurs. While they offer basic protection, bimetal devices present several disadvantages: They may exhibit contact welding due to constant opening and closing cycles, which reduces their lifespan. Bimetal protectors allow higher peak temperatures in motor windings, posing a risk of motor failure. 2. Fuzetec PPTC Resettable Fuses Fuzetec PPTC resettable fuses offer a superior alternative to bimetal protectors by providing faster, more reliable protection with fewer risks of failure. These devices operate based on a thermally sensitive polymer material that increases resistance when an overcurrent, stall current, or thermal condition is detected, effectively limiting the current flow and protecting the motor from damage. Benefits of Fuzetec PPTC Fuses: Resettable: After tripping, PPTC devices automatically reset once the fault condition clears, allowing the motor to resume normal operation without requiring a fuse replacement. No Contact Welding: PPTC fuses eliminate the risk of contact welding and excessive heat buildup, as they have no moving parts. Compact Design: Fuzetec PPTC devices are designed to fit into tight spaces within motor brush cards, making them ideal for modern, smaller automotive motor designs. High Temperature Resistance: Fuzetec PPTC fuses can operate at high ambient temperatures, ensuring consistent performance in demanding automotive environments. AEC-Q200 Compliance: Fuzetec PPTC fuses are compliant with the AEC-Q200 qualification, which is a critical requirement for automotive components. This ensures that the devices can withstand the demanding environmental and electrical conditions found in automotive applications. AEC-Q200 compliance guarantees that Fuzetec PPTC fuses meet high standards for temperature cycling, humidity resistance, vibration, and thermal shock, making them highly reliable in harsh automotive environments. How Fuzetec PPTC Fuses Enhance Automotive Motor Safety 1. Overcurrent Protection Overcurrent situations can lead to dangerous currents flowing through the motor windings, potentially causing overheating and permanent damage. Fuzetec PPTC resettable fuses respond quickly to excessive current by increasing resistance, limiting the current flow, and preventing damage to the motor. 2. Thermal Protection Prolonged operation under heavy loads or high ambient temperatures can cause the motor windings to overheat, leading to potential failure. Fuzetec PPTC fuses provide thermal protection by reacting to temperature increases and transitioning to a high-resistance state to reduce current flow and lower the temperature of the motor windings. 3. Stall Current Protection Stall current is one of the most hazardous conditions for a DC motor, as it can occur when the motor is blocked from rotating. In this scenario, the motor draws significantly higher current than its rated operating current, leading to overheating and potential winding failure. Fuzetec PPTC resettable fuses protect against stall current by rapidly detecting the excessive current and transitioning to a high-resistance state, preventing the motor from overheating and safeguarding the motor windings. 4. Cycle Life and Reliability Automotive motors, such as those used in power windows or windshield wipers, operate under high cycle conditions, frequently starting and stopping over their operational life. Fuzetec PPTC resettable fuses are designed for high cycle life, ensuring that they do not trip unnecessarily during normal operation but provide reliable protection when needed. Integration of Fuzetec PPTC Fuses in Automotive Motor Design Fuzetec PPTC resettable fuses are easily integrated into the brush card assembly of automotive motors. Their low profile and compact size make them an ideal choice for modern motor designs where space is at a premium. Additionally, Fuzetec provides a wide range of PPTC devices tailored to meet the specific protection needs of automotive motors, ensuring compatibility with various motor designs and applications. By selecting the appropriate Fuzetec PPTC fuse for a given motor, automotive designers can ensure optimal performance and protection without compromising on space or cost. Fuzetec's advanced PPTC technology provides fast response times, stable resistance, and long-term reliability, making them the preferred choice for automotive motor protection. Furthermore, the AEC-Q200 compliance of Fuzetec PPTC fuses guarantees their durability and performance under the harsh conditions of automotive applications, including exposure to extreme temperatures, mechanical stress, and electrical disturbances. Conclusion The safety and reliability of automotive DC motors are paramount, given their essential role in various vehicle functions. Fuzetec PPTC resettable fuses offer a comprehensive protection solution by safeguarding motors from overcurrent, stall current, thermal overload, and EMI interference. With their compact design, high reliability, resettable functionality, and AEC-Q200 compliance, Fuzetec PPTC fuses significantly enhance the safety of automotive motors, ensuring long-term operation and reducing the risk of costly repairs or system failures. For automotive manufacturers looking to improve the safety and efficiency of their motor designs, integrating Fuzetec PPTC resettable fuses is a smart, cost-effective choice. As automotive technologies evolve, Fuzetec continues to develop innovative protection solutions to meet the growing demands of the industry, providing peace of mind for both manufacturers and consumers. Fuzetec PPTC Resettable Fuse FCTSH48016 for Automotive Power Seat/Lumber support Motor/Solenoid protection.

Introduction Choosing the right MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is crucial for the performance and efficiency of electronic circuits. Whether you’re designing a power supply, a motor driver, or any other electronic application, understanding the key parameters and types of MOSFETs will help you make an informed decision. This guide will walk you through the essential aspects of MOSFET selection to ensure your design is optimized for performance and reliability. Understanding MOSFET Basics What is a MOSFET? A MOSFET is a type of field-effect transistor used to switch or amplify electronic signals. It consists of three terminals: the gate, the drain, and the source. The voltage applied to the gate controls the current flow between the drain and source, making it a crucial component in many electronic devices. Types of MOSFETs There are two main types of MOSFETs: N-channel and P-channel. N-channel MOSFETs Advantages:Lower on-resistance, faster switching speeds, and higher current capability. Applications:Power management, motor control, and high-speed switching. P-channel MOSFETs Advantages:Simplified high-side switching, easier gate drive requirements for positive voltage systems. Applications:Load switches, reverse polarity protection, and low-side switching. Key Parameters for MOSFET Selection 1. Drain-Source Voltage (VDS) The maximum voltage that can be applied between the drain and the source without causing breakdown. Ensure that the VDS rating exceeds the maximum voltage in your application to prevent failure. 2. Gate-Source Voltage (VGS) The maximum voltage that can be applied between the gate and the source. Exceeding this voltage can damage the MOSFET. 3. On-Resistance (RDS(on)) The resistance between the drain and source when the MOSFET is on. Lower RDS(on) values result in lower conduction losses and higher efficiency. 4. Threshold Voltage (VGS(th)) The minimum gate-source voltage required to turn the MOSFET on. Choose a MOSFET with a threshold voltage compatible with your gate drive voltage. 5. Maximum Drain Current (ID) The maximum continuous current the MOSFET can handle. Ensure this value exceeds the maximum current in your application. 6. Total Gate Charge (Qg) The charge required to switch the MOSFET on and off. Lower gate charge values result in faster switching and lower gate drive power consumption. 7. Power Dissipation (PD) The maximum power the MOSFET can dissipate without exceeding its thermal limits. Consider heat sinking and cooling methods if your application involves high power dissipation. Additional Considerations Package Type MOSFETs come in various package types, such as through-hole and surface-mount. The package type affects the thermal performance and mounting method. Choose a package that suits your thermal management requirements and PCB design. Switching Speed The switching speed of a MOSFET is crucial for high-frequency applications. Look for parameters such as rise time, fall time, and switching energy to evaluate the speed performance. Thermal Resistance (RθJA) Thermal resistance from junction to ambient. Lower thermal resistance indicates better heat dissipation. Proper thermal management is essential to prevent overheating and ensure reliable operation. Selecting MOSFETs for Specific Applications USB Power Delivery MOSFETs are used as a switch for the VBUS voltage can also be used to monitor over-current conditions. Power Supplies For power supply applications, low RDS(on) and high VDS ratings are crucial. Ensure the MOSFET can handle the input voltage and current requirements of the power supply. Consider using synchronous rectification with N-channel MOSFETs for higher efficiency. Motor Drivers In motor control applications, both the maximum drain current and switching speed are important. Choose MOSFETs with low RDS(on) to minimize conduction losses and high current capability to handle motor startup and stall currents. Audio Amplifiers Audio amplifiers require MOSFETs with low distortion and good linearity. Look for MOSFETs with low total harmonic distortion (THD) and good thermal stability to ensure high audio quality. LED Drivers For LED driver applications, choose MOSFETs with low RDS(on) and high switching speed to maintain efficiency. Ensure the MOSFET can handle the current requirements of the LED array. DC-DC Converters DC-DC converters benefit from MOSFETs with low RDS(on), low gate charge, and fast switching speeds. These characteristics help improve efficiency and reduce heat generation in the converter. Practical Tips for MOSFET Selection Analyze Your Circuit Requirements Start by analyzing the voltage, current, and switching frequency requirements of your circuit. This will help you narrow down the list of potential MOSFET candidates. Use Manufacturer’s Selection Guides Many MOSFET manufacturers provide selection guides and parametric search tools on their websites. Utilize these resources to find MOSFETs that match your specifications. Consider Thermal Management Evaluate the thermal performance of the MOSFET in your application. Ensure adequate heat sinking and cooling methods are in place to maintain safe operating temperatures. Conclusion Choosing the right MOSFET for your application involves understanding key parameters, considering the specific requirements of your circuit, and ensuring proper thermal management. By carefully evaluating these factors, you can select a MOSFET that delivers optimal performance, efficiency, and reliability. Whether you're designing a power supply, motor driver, or any other electronic application, following this guide will help you make an informed decision and achieve successful results.

Introduction In the ever-evolving landscape of electronics, the Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in numerous applications. From power management in consumer electronics to automotive systems, MOSFETs are integral components that ensure efficient performance. One critical aspect of MOSFET functionality is its packaging type, which can significantly impact its thermal performance, reliability, and suitability for specific applications. This article aims to provide a detailed overview of various MOSFET packaging types and offer guidance on selecting the appropriate package for your application. Understanding MOSFET Packaging What is MOSFET Packaging? MOSFET packaging refers to the physical casing that houses the MOSFET chip, providing mechanical support and protection while enabling electrical connectivity to the circuit. The packaging type affects the MOSFET's heat dissipation, size, and ease of mounting, all of which are crucial factors in its performance and reliability. Importance of MOSFET Packaging Choosing the right MOSFET packaging is essential for several reasons: Thermal Management:Efficient heat dissipation is vital to prevent overheating and ensure the longevity of the MOSFET. Space Constraints:Compact packaging is necessary for applications with limited space. Electrical Performance:Packaging impacts the MOSFET's parasitic inductance and resistance, affecting its overall electrical performance. Mounting and Handling:Different packaging types offer various mounting options, influencing the ease of assembly and reliability of the connections. Fuzetec MOSFET Package Information Common MOSFET Packaging Types Through-Hole Packages TO-220 The TO-220 package is a popular choice for power MOSFETs due to its excellent thermal performance and ease of mounting. It features a metal tab for heat sinking and is suitable for applications requiring efficient heat dissipation. Advantages:High power dissipation, robust mechanical design. Disadvantages:Larger footprint, not suitable for high-density applications. TO-247 The TO-247 package is designed for higher power applications than the TO-220. It provides even better thermal performance and can handle higher currents, making it ideal for industrial and automotive applications. Advantages:Superior thermal management, high current capability. Disadvantages:Larger size, more challenging to handle in compact designs. Surface-Mount Packages TO-252 (DPAK) DPAK, also known as TO-252, is a surface-mount package that offers a good balance between thermal performance and compact size. It is widely used in power management applications. Advantages:Good thermal performance, compact size. Disadvantages:Moderate current handling, requires careful soldering. TO-263 (D2PAK) The TO-263, or D2PAK, is a larger surface-mount package compared to DPAK. It provides better thermal performance and can handle higher currents, making it suitable for more demanding applications. Advantages:High power dissipation, robust design. Disadvantages:Larger footprint, higher cost. SO/SOIC Package The SO/SOIC package is a small-outline package commonly used for low-power MOSFETs in space-constrained applications. It offers moderate thermal performance and is suitable for switching and signal applications. Advantages:Small size, low cost. Disadvantages:Limited thermal performance, lower current capability. Advanced Packaging Types DFN (Dual Flat No-lead) DFN packages are ultra-compact and offer excellent thermal performance due to their low thermal resistance. They are ideal for high-density designs and applications requiring efficient heat dissipation. Advantages:Ultra-compact size, excellent thermal performance. Disadvantages:Challenging to handle and solder, higher cost. PRPAK (PowerPAK) PRPAK packages are designed to provide enhanced thermal performance and lower electrical resistance. They are available in various sizes, making them suitable for a wide range of power applications. Advantages:Superior thermal and electrical performance, versatile. Disadvantages:Higher cost, complex assembly requirements. Selecting the Right MOSFET Package Application Requirements When selecting a MOSFET package, it is crucial to consider the specific requirements of your application. Key factors include: Power Dissipation:Determine the thermal performance needed based on the power dissipation in your circuit. Current Handling:Assess the current carrying capacity required for your application. Space Constraints:Evaluate the available space and choose a package that fits within the design constraints. Mounting Method:Decide whether a through-hole or surface-mount package is more suitable for your assembly process. Thermal Management Considerations Effective thermal management is essential for reliable MOSFET operation. Consider the following aspects: Heat Sinking:Packages like TO-220 and TO-247 offer metal tabs for attaching heat sinks, enhancing thermal dissipation. PCB Design:Surface-mount packages like TO-252 and PRPAK benefit from good PCB thermal design, such as thermal vias and copper pours. Electrical Performance The packaging type also influences the MOSFET's electrical characteristics: Parasitic Inductance and Resistance:Choose packages with low parasitic elements for high-frequency applications. Switching Speed:Ensure the package can support the required switching speeds without excessive losses. Cost and Availability Finally, consider the cost and availability of the MOSFET packages. While advanced packages like PRPAK offer superior performance, they may come at a higher cost and require more complex assembly processes. Conclusion Selecting the appropriate MOSFET packaging type is a critical decision that impacts the overall performance, reliability, and efficiency of your application. By understanding the various packaging options and their respective advantages and disadvantages, you can make an informed choice that meets your specific requirements. Whether you prioritize thermal management, space constraints, or electrical performance, the right MOSFET package can significantly enhance the functionality of your electronic designs.

Introduction In the automotive industry, the reliability and efficiency of electronic components are paramount. Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) play a critical role in various automotive applications, from powertrain control to infotainment systems. Selecting the right MOSFETs for these applications involves understanding their specifications, performance characteristics, and compliance with industry standards such as AEC-Q101. Importance of MOSFETs in Automotive Applications Powertrain Control MOSFETs are integral to powertrain control systems, which include engine control units (ECUs), transmission control units (TCUs), and hybrid/electric vehicle (HEV) power modules. Their ability to switch high currents with low resistance makes them ideal for managing power distribution efficiently. Infotainment and Lighting Systems In infotainment systems, MOSFETs ensure the reliable operation of audio, video, and navigation systems. For lighting systems, especially LED lighting, MOSFETs provide precise control over light intensity and energy consumption, enhancing vehicle safety and aesthetics. Safety and Advanced Driver-Assistance Systems (ADAS) MOSFETs are crucial in safety systems and ADAS, which include airbag deployment, anti-lock braking systems (ABS), and electronic stability control (ESC). Their fast switching capabilities and high efficiency are essential for the real-time processing required in these systems. Understanding AEC-Q101 Standards What is AEC-Q101? The Automotive Electronics Council (AEC) established the AEC-Q101 qualification standard to ensure the reliability and robustness of integrated circuits (ICs) used in automotive applications. This standard outlines stress test qualifications for ICs, ensuring they can withstand the harsh conditions of automotive environments, such as extreme temperatures, vibrations, and electrical noise. Key AEC-Q101 Qualification Tests Temperature Cycling This test subjects MOSFETs to extreme temperature variations to assess their ability to perform reliably under changing thermal conditions. It ensures that MOSFETs can withstand the rapid temperature fluctuations encountered in automotive environments. High-Temperature Operating Life (HTOL) HTOL tests MOSFETs at elevated temperatures to evaluate their long-term reliability and performance. This test ensures that MOSFETs can operate consistently over the vehicle's lifespan. Electrostatic Discharge (ESD) Testing ESD testing evaluates the MOSFETs' resilience to electrostatic discharge, which can occur during manufacturing or in the field. Ensuring ESD robustness is crucial for preventing component failure due to static electricity. Mechanical Shock and Vibration These tests simulate the mechanical stresses that MOSFETs will encounter in automotive applications. They ensure that MOSFETs can endure the vibrations and shocks from rough roads and vehicle dynamics without performance degradation. Selecting Automotive MOSFETs Key Selection Criteria Voltage and Current Ratings Selecting MOSFETs with appropriate voltage and current ratings is crucial for ensuring they can handle the power requirements of the specific automotive application. Overrating or underrating these parameters can lead to inefficiency or component failure. Voltage Rating:Automotive MOSFETs typically range from 40V to 100V, depending on the application. For example, 40V MOSFETs are commonly used in low-voltage applications such as body electronics, while 80V to 100V MOSFETs are used in powertrain and safety systems. Current Rating:The current rating should match the application's load requirements. For instance, MOSFETs with a current rating of 20A to 100A are commonly used in powertrain systems. RDS(on) and Efficiency The on-resistance (RDS(on)) of a MOSFET directly impacts its efficiency. Lower RDS(on) values reduce power losses during switching, enhancing overall system efficiency. Selecting MOSFETs with low RDS(on) is essential for applications requiring high efficiency. Thermal Management Effective thermal management is vital for maintaining MOSFET performance and longevity. Selecting MOSFETs with good thermal characteristics and considering proper heatsinking or cooling solutions are essential for avoiding thermal runaway and ensuring reliability. Recommended MOSFET Package Types and Voltage/Power Ratings Selecting the appropriate MOSFET package type is critical for optimizing performance, thermal management, and space utilization in automotive applications. Here are some recommended MOSFET package types along with their typical voltage and power ratings: TO-220 Voltage Rating:40V to 100V Power Rating:50W to 200W Application:The TO-220 package is widely used in high-power automotive applications due to its excellent thermal performance and ease of mounting. It is ideal for powertrain control and electric vehicle (EV) power modules. DPAK / TO-252 Voltage Rating:40V to 80V Power Rating:20W to 100W Application:The DPAK (TO-252) package is a surface-mount package known for its compact size and good thermal performance. It is suitable for applications where board space is limited, such as in infotainment systems and body electronics. D2PAK / TO-263 Voltage Rating:40V to 100V Power Rating:50W to 150W Application:The D2PAK (TO-263) is similar to the DPAK but offers higher current and power-handling capabilities. It is commonly used in automotive powertrain and safety systems, where robust thermal management is required. SOP-8 Voltage Rating:40V to 60V Power Rating:10W to 50W Application:The SOP8 package is a small-outline package that provides good thermal performance and is ideal for low to medium power applications. This package type is frequently used in automotive body electronics, LED lighting, and power distribution modules. QFN (Quad Flat No-lead) Voltage Rating:40V to 80V Power Rating:10W to 100W Application:The QFN package is a compact, leadless package that offers good thermal performance and low inductance, making it ideal for high-speed switching applications. It is commonly used in automotive communication systems and power management units where space constraints are critical. AEC-Q101 Compliant MOSFETs Fuzetec MOSFET Products Fuzetec offers a range of AEC-Q101 qualified MOSFETs designed to meet the demanding requirements of automotive applications. Known for their robustness, reliability, and high efficiency, Fuzetec's MOSFETs are ideal for use in powertrain control, infotainment systems, and safety-critical applications. Voltage and Current Ratings: Fuzetec provides MOSFETs with voltage ratings from 40V to 100V and current ratings up to 100A, making them suitable for a wide range of automotive applications. Package Types: Fuzetec MOSFETs are available in various package types, including TO-220, DPAK, D2PAK, and SOP8, allowing engineers to select the most appropriate package for their specific design needs. RDS(on) and Thermal Management: Fuzetec MOSFETs feature low RDS(on) values for enhanced efficiency and are designed with excellent thermal characteristics to ensure reliable performance in harsh automotive environments. Fuzetec's commitment to quality and innovation ensures that their MOSFET products not only meet but exceed the stringent requirements of AEC-Q101 standards, providing peace of mind to automotive engineers and manufacturers. Integration and Application Considerations PCB Layout and Design Proper PCB layout and design are critical for maximizing MOSFET performance and reliability. Ensuring adequate spacing, minimizing parasitic inductance, and optimizing thermal paths are essential steps in the design process. Parasitic Inductance and Capacitance Minimizing parasitic inductance and capacitance in the PCB design helps reduce switching losses and improve overall efficiency. Proper component placement and trace routing are crucial for achieving optimal performance. Thermal Management Solutions Implementing effective thermal management solutions, such as heatsinks, thermal vias, and adequate airflow, is vital for maintaining MOSFET temperatures within safe operating limits. This ensures longevity and reliable operation in automotive applications. Conclusion Selecting the right MOSFETs for automotive applications involves careful consideration of voltage and current ratings, efficiency, thermal management, and compliance with AEC-Q101 standards. Additionally, choosing the appropriate MOSFET package type plays a significant role in ensuring optimal performance and reliability in various automotive systems. By understanding the critical role of MOSFETs in automotive systems and the importance of AEC-Q101 qualifications, engineers can ensure the reliability and performance of their designs. With the right MOSFETs, package types, and voltage/power ratings, automotive electronics can meet the demanding requirements of modern vehicles, providing safety, efficiency, and innovation. Find out more about Fuzetec MOSFETs Products.

Introduction In today's electronic world, transient surge protection is crucial to ensuring the longevity and reliability of electronic devices. Transient surges, caused by events such as lightning strikes, power switching, and electrostatic discharge (ESD), can lead to significant damage to sensitive electronic components. As a field application engineer specializing in circuit protection components, I aim to provide an in-depth understanding of two critical components used for transient surge protection: TVS diodes and MOV varistors. What are TVS Diodes? TVS Diodes: Definition and Functionality Transient Voltage Suppression (TVS) diodes are specialized semiconductor devices designed to protect electronic circuits from transient voltage spikes. TVS diodes are designed to clamp overvoltages to a safe level, protecting sensitive components from damage. These devices are characterized by their fast response time and precise clamping voltage. How TVS Diodes Work When a transient voltage exceeds the breakdown voltage of the TVS diode, the diode becomes conductive, allowing the excess current to pass through the diode and away from the protected components. This action effectively clamps the voltage to a safe level, preventing damage to the circuit. Once the transient event subsides, the TVS diode returns to its non-conductive state, ready to protect against future surges. Applications of TVS Diodes TVS diodes are widely used in various applications, including: Telecommunication Devices: Protecting against lightning-induced surges. Automotive Electronics: Ensuring the reliability of electronic control units (ECUs) and sensors. Consumer Electronics: Safeguarding devices such as smartphones and laptops from ESD and power surges. Industrial Equipment: Providing protection in harsh environments with high transient surge potential. Fuzetec TVS Diodes Products What are MOV Varistors? MOV Varistors: Definition and Functionality Metal Oxide Varistors (MOVs) are voltage-dependent resistors that provide transient surge protection by changing their resistance with respect to the applied voltage. MOVs are composed of zinc oxide particles and other metal oxides, creating a ceramic-like material that exhibits non-linear resistance characteristics. How MOV Varistors Work Under normal operating conditions, MOVs exhibit high resistance, allowing minimal current to flow through them. When a transient surge occurs, the voltage across the MOV increases, causing its resistance to drop significantly. This low resistance path allows the excess surge current to flow through the MOV, diverting it away from the protected components. After the surge event, the MOV returns to its high resistance state, ready to protect against future surges. Applications of MOV Varistors MOV varistors are commonly used in applications such as: Power Supplies: Protecting against overvoltage conditions. Home Appliances: Safeguarding electronics from lightning strikes and power surges. Communication Systems: Providing transient protection for signal lines. Industrial Controls: Ensuring the reliability of control systems in the presence of surges. Fuzetec MOV Varistor Products Comparing TVS Diodes and MOV Varistors Response Time One of the critical differences between TVS diodes and MOV varistors is their response time. TVS diodes are known for their fast response time, typically in the order of picoseconds to nanoseconds, making them ideal for protecting high-speed data lines and sensitive electronic circuits. In contrast, MOV varistors have a slower response time, typically in the order of microseconds, which can be sufficient for many power line and general surge protection applications. Clamping Voltage Precision TVS diodes offer precise clamping voltage, providing tight protection thresholds, which is essential for protecting low voltage and sensitive circuits. On the other hand, MOV varistors have a wider clamping voltage range, which can be advantageous in applications where exact clamping is not as critical but where higher energy handling is required. Energy Absorption Capability MOV varistors generally have a higher energy absorption capability compared to TVS diodes. This characteristic makes MOVs suitable for applications where large surge energy needs to be dissipated, such as in AC power lines and heavy-duty industrial equipment. TVS diodes, while having lower energy absorption capacity, are better suited for protecting smaller, more sensitive components. Longevity and Durability TVS diodes typically have a longer lifespan and better durability under repeated transient events compared to MOV varistors. MOVs can degrade over time with repeated surges, leading to a decrease in their protective capability. This degradation is less of an issue with TVS diodes, making them a more reliable choice for applications with frequent transient occurrences. Selecting the Right Protection Component Factors to Consider When selecting between TVS diodes and MOV varistors for transient surge protection, several factors should be considered: Nature of the Transient Events: High-speed and low-energy transients may be better managed by TVS diodes, while high-energy surges are more suitable for MOV varistors. Clamping Voltage Requirements: For precise clamping, TVS diodes are preferable. For broader clamping ranges, MOV varistors are more suitable. Energy Handling Needs: Applications requiring high energy absorption should consider MOV varistors. Longevity and Durability: For applications with frequent surges, TVS diodes offer better long-term reliability. Application Examples Consumer Electronics: Use TVS diodes for protecting USB ports, HDMI interfaces, and other sensitive data lines. Industrial Power Supplies: Employ MOV varistors for protecting AC power lines and heavy-duty equipment. Automotive Systems: Combine TVS diodes for protecting low voltage circuits and MOV varistors for high-energy protection on power lines. Conclusion Both TVS diodes and MOV varistors play crucial roles in transient surge protection, each offering unique advantages suited to different applications. Understanding the specific requirements of your application is essential in selecting the appropriate protection component. Whether you need the fast response and precise clamping of a TVS diode or the high energy absorption capability of an MOV varistor, these components provide reliable protection to ensure the longevity and reliability of your electronic devices. By carefully considering the characteristics and benefits of each component, you can effectively protect your circuits from the damaging effects of transient surges.

Introduction In the modern world, smart power plugs have become indispensable due to their convenience and automation capabilities. However, the safety challenges they pose cannot be ignored. News frequently reports fires caused by electrical outlets, highlighting the catastrophic impact on life and property. Therefore, the protection design of smart power plugs is crucial. Fuzetec's Metal Oxide Varistor (MOV) products, specifically the FMOV series, play a vital role in enhancing the design and safety of these devices. This article will explore the key design elements and technologies that ensure smart power plugs operate safely and reliably in various scenarios. Key Design Elements for Smart Power Plug Protection Overload Protection Design Overload protection is essential to prevent electrical fires and ensure the durability of smart power plugs. The following components are integral to effective overload protection: Electronic Circuit Breakers Electronic circuit breakers quickly cut off power when they detect a current exceeding the rated value. This swift response prevents overheating and potential fires. Thermistors Thermistors, which alter resistance with temperature, can automatically cut off power when temperatures exceed safe thresholds. This mechanism protects against overheating due to prolonged high currents. Overvoltage Protection Design Overvoltage can damage electrical circuits and connected devices. The following technologies are used to safeguard against such events: Metal Oxide Varistors (MOV) MOVs conduct and absorb excess voltage when it surpasses a preset level, protecting the circuit and connected devices from overvoltage damage. Fuzetec's FMOV series is particularly effective in this role. Surge Protectors Surge protectors are designed to withstand short-term high voltage spikes, preventing damage to sensitive electronic components. Overcurrent Protection Design Overcurrent protection prevents excessive current from damaging the circuitry of smart power plugs. Key components include: Resettable Fuses (PPTC) Resettable fuses, such as PPTC fuses, can interrupt the circuit in overcurrent situations and reset once the fault is cleared. This ensures continued protection without the need for replacement. Short Circuit Protection Design Short circuits can cause severe damage and pose a fire hazard. Effective short circuit protection includes: Rapid Power Cut-off Circuits These circuits instantly disconnect power upon detecting a short circuit, preventing damage to the plug and connected devices. Dual Isolation Incorporating dual isolation in circuit design ensures that even if a short circuit occurs, users remain safe from electrical hazards. Over-temperature Protection Design Preventing overheating is vital for the safe operation of smart power plugs. Design elements include: Temperature Sensors Strategically placed temperature sensors monitor internal temperatures and cut off power if thresholds are exceeded, preventing overheating and potential fires. Heat Dissipation Design Optimizing heat sinks and ventilation ensures efficient heat dissipation, maintaining safe operating temperatures within the smart power plug. Lightning Protection Design Lightning strikes can introduce high voltage surges into electrical systems. Protection strategies include: Surge Protection Devices Using surge protection devices like MOVs or Gas Discharge Tubes (GDTs) can absorb the high voltage spikes caused by lightning, protecting the smart power plug and connected devices. Fuzetec FMOV Series: Enhancing Safety and Reliability Fuzetec's FMOV series products are designed to enhance the safety and reliability of smart power plugs. These MOVs provide robust protection against transient overvoltages, ensuring that the smart plugs can withstand high voltage surges without damage. The FMOV series offers the following advantages: Instantaneous Overvoltage Protection FMOV products can quickly respond to overvoltage conditions, conducting and clamping the excess voltage to safe levels. This rapid action is crucial in preventing damage to sensitive electronic components. Composite Components for Enhanced Protection The FCMOV series, a composite of MOV and other protective elements, offers superior protection against unstable power supply and prolonged overvoltage conditions. This ensures that the smart power plugs can handle even the most demanding electrical environments. Heat Dissipation and Stability Fuzetec's MOV products are designed for optimal heat dissipation, ensuring that they remain stable even under continuous overvoltage conditions. This design minimizes the risk of thermal runaway and subsequent fire hazards. Compliance with Safety Standards Fuzetec MOV products comply with international safety standards, ensuring that they provide reliable and consistent protection in various usage scenarios. This compliance is essential for building trust with consumers and regulatory bodies. Conclusion The design and safety of smart power plugs are of paramount importance, given the potential risks of electrical fires and device damage. By incorporating advanced protection technologies such as Fuzetec's FMOV series MOVs, manufacturers can significantly enhance the reliability and safety of their products. These MOVs offer rapid response to overvoltage conditions, excellent heat dissipation, and compliance with international safety standards, making them an ideal choice for modern smart power plug designs. As we continue to rely more on smart devices, ensuring their safety through robust protection mechanisms will remain a critical focus for designers and engineers. In conclusion, Fuzetec's FMOV series plays a pivotal role in improving the safety and design of smart power plugs. By addressing key protection requirements, these MOVs help prevent electrical hazards, ensuring that smart plugs operate safely and reliably in diverse environments. Find out more about Fuzetec FMOV & Hybrid Protection Products.

Introduction Transient Voltage Suppression (TVS) diodes are vital in ensuring the reliability and safety of modern automotive electronics. These diodes are fundamental in meeting the stringent requirements of ISO 16750-2, which outlines the testing and performance criteria for automotive electrical disturbances. This article explores the significance of TVS diodes in automotive applications, focusing on their role in achieving ISO 16750-2 compliance. Understanding ISO 16750-2 and Its Importance What is ISO 16750-2? ISO 16750-2 is an international standard that specifies the test methods and requirements for electrical disturbances from conducted and coupled transients on vehicle power lines. This standard is crucial for ensuring that automotive electronic systems can withstand various electrical transients, such as those caused by switching operations, load dump, and other disturbances typical in automotive environments. The Scope and Requirements of ISO 16750-2 ISO 16750-2 addresses several types of transient disturbances that can affect the performance and reliability of automotive electronics. These disturbances include: Pulse 1: Simulates transients due to disconnection of inductive loads from the battery supply. Pulse 2a/2b: Represents transients resulting from the opening of the ignition circuit. Pulse 3a/3b: Reflects transients caused by switching processes. Pulse 4: Load dump transients caused by disconnection of the battery while the alternator is charging. Pulse 5: Additional pulses that can affect electronic components in specific scenarios. Compliance with ISO 16750-2 ensures that vehicle electronic systems can operate reliably under real-world conditions, preventing failures that could lead to unsafe driving situations. The Role of TVS Diodes in Automotive Applications How TVS Diodes Work TVS diodes are designed to protect sensitive electronic components from transient voltage surges. In the automotive industry, these diodes are crucial for safeguarding systems such as engine control units (ECUs), infotainment systems, and advanced driver-assistance systems (ADAS). TVS diodes function by clamping transient voltages to a safe level, thereby protecting the downstream components. When a transient voltage surge occurs, the TVS diode becomes highly conductive, effectively shorting the surge to ground and preventing it from reaching and damaging the protected circuitry. TVS Diodes in ISO 16750-2 Compliance To meetI SO 16750-2 requirements, TVS diodes must be carefully selected and implemented within automotive electronic systems. Key aspects to consider include: Clamping Voltage: The clamping voltage of the TVS diode must be lower than the breakdown voltage of the protected components but high enough to allow normal operation. Peak Pulse Power Dissipation: The TVS diode must be capable of handling the peak power of the transients defined by ISO 16750-2 pulses. Response Time: TVS diodes need to have a fast response time to effectively clamp transient surges before they can affect the protected circuitry. Applications of TVS Diodes in Automotive Systems Engine Control Units (ECUs) ECUs are the brain of modern vehicles, managing everything from fuel injection to transmission control. TVS diodes protect ECUs from voltage surges that can occur during load dumps or inductive switching, ensuring that the vehicle operates smoothly and efficiently. Infotainment Systems Modern vehicles are equipped with sophisticated infotainment systems that integrate navigation, entertainment, and communication functions. TVS diodes protect these systems from transients that can arise from various sources, including other electronic systems within the vehicle and external sources. Advanced Driver-Assistance Systems (ADAS) ADAS technologies, such as adaptive cruise control, lane departure warning, and automatic emergency braking, rely on a network of sensors and electronic control units. TVS diodes ensure the reliability and accuracy of these systems by protecting them from transient disturbances that could otherwise impair their functionality. Power Distribution Systems The power distribution system in a vehicle includes the battery, alternator, and various electrical distribution components. TVS diodes protect these systems from transients caused by load dumps and other high-energy events, ensuring stable power delivery to all electronic systems. Selecting the Right TVS Diode for Automotive Applications Clamping Voltage and Breakdown Voltage The clamping voltage should be sufficiently low to protect sensitive electronic components but high enough to avoid unnecessary clamping during normal operation. The breakdown voltage should match the maximum operating voltage of the protected circuit. Power Rating The TVS diode must have a power rating that can handle the peak power of the transients it is expected to encounter. This includes considering the energy content of the pulses defined by ISO 16750-2. Package Type The physical package of the TVS diode must be compatible with the automotive environment, considering factors such as temperature range, mechanical stress, and space constraints. Response Time A fast response time is crucial for effective protection. The TVS diode must react quickly enough to clamp transients before they can cause damage. Automotive-Grade Reliability TVS diodes used in automotive applications must meet rigorous quality and reliability standards, often specified by AEC-Q101 (Automotive Electronics Council's stress test qualification for discrete semiconductors). Ensuring Automotive Electronics Reliability with TVS Diodes Understanding the Critical Role of TVS Diodes TVS diodes play an indispensable role in protecting automotive electronic systems from transient voltage surges. Compliance with ISO 16750-2 is essential for the reliability and safety of these systems, and TVS diodes are a critical component in achieving this compliance. Steps to Achieve ISO 16750-2 Compliance with TVS Diodes By understanding the specific requirements of ISO 16750-2 and selecting the appropriate TVS diodes, automotive manufacturers can ensure that their vehicles' electronic systems are robust, reliable, and capable of withstanding the harsh electrical environments typical of modern vehicles. This not only enhances vehicle performance and safety but also contributes to the overall longevity and dependability of automotive electronics. Benefits of TVS Diodes in Automotive Applications Enhanced Safety: Protects critical safety systems from electrical disturbances, ensuring reliable operation. Improved Reliability: Prevents damage to electronic components, reducing the risk of failures. Cost-Effective: Minimizes warranty claims and repair costs by protecting electronic systems. Regulatory Compliance: Meets international standards, facilitating global market access. Conclusion: The Future of Automotive Electronics with TVS Diodes As the automotive industry continues to evolve with advancements in technology, the importance of protecting electronic systems from transient disturbances becomes even more critical. TVS diodes are at the forefront of this protection, ensuring that vehicles can meet the rigorous demands of ISO 16750-2. The integration of TVS diodes into automotive electronics is a key strategy for managing electrical transients and achieving compliance with ISO 16750-2, ultimately leading to safer and more reliable vehicles on the road. By selecting the right TVS diodes and understanding their role in transient protection, automotive manufacturers can ensure the longevity and dependability of their electronic systems, paving the way for the future of automotive innovation.

Introduction In today's industrial environment, maintaining reliable communication and control systems is essential for efficient operations. Protocols like RS-485 and Ethernet are fundamental to these systems, facilitating robust and effective data transfer. The safety and reliability of these communication channels are paramount, and this is where Fuzetec's PPTC resettable fuses and TVS diodes come into play. These components are key to enhancing the design and safety of industrial communication and control systems. Understanding RS-485 and Ethernet in Industrial Applications RS-485 Communication Protocol RS-485 is a standard defining the electrical characteristics of drivers and receivers for use in serial communications systems. It is widely used in industrial environments due to its high noise immunity and the ability to support multiple devices on the same bus. This protocol is particularly advantageous in harsh industrial settings where electrical noise and voltage transients are common. Ethernet in Industrial Networks Ethernet has become increasingly prevalent in industrial automation due to its high-speed data transfer capabilities and compatibility with a wide range of devices. Industrial Ethernet networks require robust protection against electrical surges, transients, and other disturbances that can disrupt communication and damage equipment. The Role of Protection Devices in Industrial Communication Importance of Protection Devices Industrial environments are prone to various electrical disturbances, including voltage spikes, surges, and transients. These disturbances can cause significant damage to communication and control systems, leading to costly downtime and repairs. Protection devices such as PPTC resettable fuses and TVS diodes are essential to safeguard these systems. Common Threats to RS-485 and Ethernet Systems Voltage Surges: Sudden increases in voltage can damage sensitive electronic components. Electrostatic Discharge (ESD): Static electricity can cause immediate or latent damage to communication interfaces. Lightning Strikes: Direct or nearby lightning strikes can induce high-voltage transients in industrial networks. Electrical Noise: Industrial environments often have high levels of electrical noise, which can interfere with communication signals. Fuzetec PPTC Resettable Fuses and TVS Diodes in RS-485 and Ethernet Protection Overview of Protection Requirements RS-485 and Ethernet networks in industrial environments must be protected against a variety of electrical disturbances to ensure reliable and safe operation. Effective protection solutions include a combination of components that address different types of electrical faults. This section discusses how Fuzetec PPTC resettable fuses and TVS diodes meet these protection requirements. TVS Diodes for Transient Voltage Suppression What is a TVS Diode? Transient Voltage Suppression (TVS) diodes are designed to protect electronic circuits from voltage spikes. They operate by clamping high-voltage transients to a safe level, thereby protecting downstream components from damage. Advantages of TVS Diodes Fast Response Time: TVS diodes respond quickly to voltage transients, providing immediate protection. High Clamping Capability: They can absorb significant amounts of energy, effectively clamping high-voltage spikes. Low Leakage Current: TVS diodes have low leakage current during normal operation, minimizing their impact on circuit performance. Wide Voltage Range: Available in a variety of voltage ratings to suit different applications. Application of Fuzetec TVS Diodes in RS-485 and Ethernet Systems Fuzetec TVS diodes are used to protect RS-485 and Ethernet systems from voltage transients. They are typically placed across the communication lines to clamp voltage spikes and protect the transceivers and other sensitive components. This ensures the reliability and longevity of the communication system, even in environments prone to electrical disturbances. PPTC Resettable Fuses for RS-485 Protection What is a PPTC Resettable Fuse? Polymeric Positive Temperature Coefficient (PPTC) resettable fuses are overcurrent protection devices that limit current flow during fault conditions. They reset automatically after the fault is cleared, making them ideal for industrial applications where maintenance needs to be minimized. Advantages of PPTC Resettable Fuses Automatic Reset: PPTC fuses reset themselves after the fault condition is removed, reducing the need for manual intervention. Durability: These fuses can withstand multiple overcurrent events without degradation. Compact Size: PPTC fuses are available in compact sizes, making them suitable for integration into space-constrained designs. Cost-Effective: They offer a cost-effective solution for overcurrent protection. Application of Fuzetec PPTC Fuses in RS-485 Systems In RS-485 systems, Fuzetec PPTC resettable fuses are deployed to protect against overcurrent conditions that can arise from faults such as short circuits or miswiring. When an overcurrent condition occurs, the PPTC fuse limits the current flow, preventing damage to the RS-485 transceivers and other components. Once the fault is cleared, the fuse resets automatically, ensuring continuous protection without the need for manual replacement. This feature is particularly valuable in industrial environments where access to equipment for maintenance can be challenging. Integrating PPTC Fuses and TVS Diodes for Enhanced Protection Synergistic Protection Strategy Combining Fuzetec PPTC resettable fuses and TVS diodes provides a comprehensive protection strategy for RS-485 and Ethernet systems. The PPTC fuses handle overcurrent conditions, while the TVS diodes protect against voltage transients. This dual-layer protection ensures that industrial communication systems remain operational and safe under various fault conditions. Implementation Guidelines Placement: Place TVS diodes close to the communication interface to ensure rapid clamping of transients. PPTC fuses should be positioned in series with the power supply lines to provide overcurrent protection. Selection: Choose PPTC fuses and TVS diodes with appropriate ratings based on the operating conditions and potential fault scenarios. Testing: Perform thorough testing to validate the protection scheme under real-world conditions, ensuring that both devices operate as expected. Case Study: RS-485 and Ethernet Protection Solutions Real-World Applications In real-world applications, integrating Fuzetec protection devices has proven effective in safeguarding industrial communication networks. For example, in an industrial control system utilizing RS-485 communication, Fuzetec TVS diodes effectively clamped voltage spikes caused by nearby lightning strikes, preventing damage to the communication interface. Similarly, in an Ethernet-based control network, the combination of PPTC fuses and TVS diodes ensured continuous operation despite frequent voltage surges and electrical noise. Performance Results Testing and field data indicate that the use of Fuzetec PPTC resettable fuses and TVS diodes significantly reduces downtime and maintenance costs. The devices' robust performance under various fault conditions highlights their reliability and efficiency in protecting critical industrial communication systems. Benefits of Using Fuzetec Protection Devices Enhanced System Reliability By incorporating Fuzetec PPTC resettable fuses and TVS diodes, industrial communication systems can withstand electrical disturbances without suffering damage. This enhances the overall reliability of the system, reducing downtime and maintenance costs. Improved Safety Protecting communication and control systems from electrical faults improves the safety of industrial operations. Preventing damage to critical components reduces the risk of accidents and ensures the smooth operation of industrial processes. Cost Savings The use of resettable fuses and robust transient voltage suppression reduces the need for frequent component replacements and repairs. This results in significant cost savings over the lifetime of the equipment. Conclusion Fuzetec PPTC resettable fuses and TVS diodes play a crucial role in enhancing the design and safety of industrial communication and control systems, particularly for RS-485 and Ethernet protocols. By providing reliable protection against overcurrent conditions and voltage transients, these devices ensure the uninterrupted operation of critical industrial processes. Integrating Fuzetec protection devices into your industrial communication systems is a smart investment in reliability, safety, and cost efficiency. Find out more about Fuzetec TVS Diodes and PPTC Resettable Fuses products.

Introduction In the realm of industrial automation, Human-Machine Interfaces (HMIs) serve as the crucial link between operators and machinery. These interfaces enable efficient control, monitoring, and diagnostics of complex industrial systems. However, HMIs are vulnerable to electrical overstress (EOS) due to various factors like power surges, electrostatic discharge (ESD), and lightning strikes. Fuzetec's Transient Voltage Suppression (TVS) diodes offer robust protection against such electrical threats, ensuring the longevity and reliability of HMIs. This article delves into the significance of Fuzetec TVS diodes in safeguarding industrial HMIs from EOS. Understanding Electrical Overstress in Industrial HMIs The Impact of Electrical Overstress Electrical overstress occurs when electronic components are subjected to voltages or currents beyond their maximum rating, leading to immediate or cumulative damage. For HMIs, EOS can result from external sources such as lightning strikes, power surges, or internal factors like switching transients and ESD events. The consequences of EOS include: Component Damage: EOS can cause irreversible damage to sensitive electronic components within HMIs, leading to malfunction or complete failure. System Downtime: Damaged HMIs can disrupt industrial operations, resulting in costly downtime and maintenance. Safety Hazards: Faulty HMIs can pose significant safety risks to operators and machinery, emphasizing the need for reliable protection mechanisms. Importance of Protecting HMIs from EOS Given the critical role of HMIs in industrial environments, protecting them from EOS is paramount. Effective protection ensures continuous operation, reduces maintenance costs, and enhances overall system safety. Fuzetec TVS diodes are designed to provide this essential protection by clamping transient voltages and preventing EOS-related damage. Fuzetec TVS Diodes: A Shield Against Electrical Overstress How TVS Diodes Work TVS diodes are semiconductor devices that protect electronic circuits from transient voltage spikes. When a transient voltage exceeds the breakdown voltage of the TVS diode, the diode clamps the voltage to a safe level, thereby protecting the connected circuitry. Key features of Fuzetec TVS diodes include: Rapid Response Time: Fuzetec TVS diodes respond within nanoseconds, ensuring immediate protection against transient events. High Power Dissipation: These diodes can absorb significant amounts of transient energy, preventing it from reaching and damaging sensitive components. Low Clamping Voltage: Fuzetec TVS diodes maintain a low clamping voltage, ensuring minimal impact on the normal operation of HMIs. Benefits of Fuzetec TVS Diodes in HMI Protection Integrating Fuzetec TVS diodes into HMI designs offers numerous advantages: Enhanced Reliability: By mitigating the effects of EOS, Fuzetec TVS diodes enhance the reliability and longevity of HMIs. Cost Savings: Reducing the frequency of HMI failures and the need for repairs or replacements leads to significant cost savings in industrial operations. Improved Safety: Reliable HMI operation ensures safer working conditions for operators, minimizing the risk of accidents caused by faulty interfaces. Practical Applications of Fuzetec TVS Diodes in HMIs Protecting Power Supply Circuits Power supply circuits within HMIs are particularly susceptible to EOS. Fuzetec TVS diodes can be placed across power inputs to clamp transient voltages, safeguarding the entire HMI system. This protection is crucial in environments with unstable power sources or frequent switching transients. Shielding Communication Interfaces HMIs often rely on various communication interfaces (e.g., Ethernet, USB, RS232) to interact with other industrial systems. These interfaces can be entry points for transient voltages. Incorporating Fuzetec TVS diodes at communication ports ensures these transients are clamped, maintaining data integrity and preventing damage to interface circuits. Enhancing ESD Protection ESD events are common in industrial settings and can cause immediate damage to HMI components. Fuzetec TVS diodes, with their rapid response time, provide effective ESD protection. Placing these diodes near sensitive components ensures that any ESD-induced voltages are swiftly clamped, protecting the HMI from damage. Case Study: Improving HMI Safety in Industrial Automation The Challenge A leading manufacturer of industrial automation systems faced frequent HMI failures due to EOS, resulting in significant downtime and maintenance costs. The HMIs were exposed to harsh electrical environments, including frequent power surges and ESD events. The Solution The manufacturer integrated Fuzetec TVS diodes into the HMI designs, focusing on critical areas such as power supply circuits and communication interfaces. The TVS diodes provided robust protection against transient voltages, ensuring the HMIs could withstand the harsh electrical conditions. The Results Post-implementation, the manufacturer observed a substantial reduction in HMI failures. The improved reliability of the HMIs led to decreased maintenance costs and minimized system downtime. Additionally, the enhanced safety of the HMIs contributed to a safer working environment for operators. Conclusion Protecting Industrial Human-Machine Interfaces from electrical overstress is essential for ensuring reliable and safe industrial operations. Fuzetec TVS diodes offer an effective solution to mitigate the impact of transient voltages, enhancing the design and safety of HMIs. By integrating these diodes into HMI designs, manufacturers can achieve improved reliability, cost savings, and a safer working environment. As industrial automation continues to evolve, the importance of robust EOS protection will only grow, making Fuzetec TVS diodes a critical component in modern HMI systems. Find out more about Fuzetec TVS Diodes Products.

Introduction As the demand for more compact, efficient, and reliable electronic devices grows, circuit protection technology must evolve to meet stringent requirements. Fuzetec, a leader in circuit protection solutions, has developed hybrid products that combine two robust technologies—PPTC resettable fuses with MOV varistors or TVS diodes. These hybrid solutions provide enhanced protection against overcurrent and transient voltage surges, making them ideal for applications in consumer electronics, automotive, telecommunications, and industrial equipment. This article explores Fuzetec’s hybrid protection products, detailing the benefits of combining PPTC resettable fuses with either MOV varistors or TVS diodes, and how these hybrid solutions offer superior performance in demanding environments. The Role of PPTC Resettable Fuses in Circuit Protection A PPTC (Polymeric Positive Temperature Coefficient) resettable fuse is a critical component in overcurrent protection. When excessive current flows through a circuit, the PPTC fuse increases its resistance, limiting the current and preventing damage to sensitive components. Once the fault condition is cleared, the fuse cools down, returning to its low-resistance state, allowing normal operation to resume. Key benefits of PPTC resettable fuses: Resettable feature: Unlike traditional fuses that need replacement after tripping, PPTC fuses automatically reset, reducing maintenance costs. Compact size: Their small footprint makes them suitable for space-constrained applications. Wide operating range: PPTC fuses can operate effectively in various voltage and current environments, enhancing their versatility. In hybrid protection systems, PPTC fuses serve as the first line of defense by controlling overcurrent conditions, but protection from transient voltage spikes also requires robust surge suppression. This is where MOV varistors and TVS diodes come into play. MOV Varistor and TVS Diode: Safeguarding Against Transient Voltage Surges Both MOV (Metal Oxide Varistor) and TVS (Transient Voltage Suppression) diodes are commonly used to protect circuits from transient voltage surges, which can occur due to lightning strikes, power supply fluctuations, or electrostatic discharge (ESD). MOV Varistor MOV varistors are non-linear resistors that absorb excessive voltage by clamping the voltage at a safe level, thereby protecting downstream components from surges. When the voltage exceeds a specific threshold, the MOV rapidly decreases its resistance, allowing it to dissipate the surge energy. Advantages of MOV varistors: High energy absorption: Capable of withstanding large surge currents. Wide voltage range: Suitable for use in both low- and high-voltage applications. Cost-effective: MOVs are an affordable solution for surge protection in consumer and industrial electronics. TVS Diode TVS diodes, on the other hand, are semiconductor devices designed to protect circuits by clamping transient voltages. They respond faster than MOVs, making them ideal for applications where a rapid response is critical, such as protecting sensitive semiconductor components. Advantages of TVS diodes: Fast response time: Can react to surges within nanoseconds. Low clamping voltage: Provides precise protection without allowing high voltages to reach downstream components. Bidirectional and unidirectional options: Offers flexibility in design, depending on the polarity of the transient threats. Fuzetec Hybrid Solutions: PPTC Resettable Fuse + MOV Varistor Fuzetec’s hybrid solutions combine the strengths of PPTC resettable fuses with MOV varistors, creating a synchronized mechanism for circuits. The combination ensures overcurrent protection and safeguards against transient voltage surges, making these hybrid devices highly effective in environments prone to power fluctuations or voltage spikes. Key Applications of PPTC + MOV Hybrid Solutions: Smart home devices: Protect sensitive electronics from power surges while providing resettable overcurrent protection. Power supplies: Ensure both surge and overcurrent protection in high-demand power supply designs. Telecommunications equipment: Safeguard communication networks from transient surges caused by lightning strikes and power disruptions. Benefits of PPTC + MOV Hybrid Solutions: Fuzetec FCMOV / FCMOV-T Products Comprehensive protection: The hybrid design provides synchronized protection—limiting current and suppressing surges. Extended product lifespan: By protecting circuits from multiple failure modes, these hybrid devices enhance the durability of electronic systems. Space-saving design: Combining two protection technologies into a single package reduces the overall footprint, which is critical in modern, compact designs. Fuzetec Hybrid Solutions: PPTC Resettable Fuse + TVS Diode For applications requiring fast transient response, Fuzetec offers hybrid solutions that pair PPTC resettable fuses with TVS diodes. This combination provides both overcurrent protection and rapid clamping of transient voltages, making it ideal for safeguarding sensitive electronic components. Key Applications of PPTC + TVS Diode Hybrid Solutions: Automotive electronics: Protects against both overcurrent and voltage spikes in critical automotive systems like infotainment, body control modules, and engine control units (ECUs). Industrial control systems: Ensures uninterrupted operation by mitigating transient voltage surges in factory automation and control equipment. Consumer electronics: Protects sensitive semiconductor devices from voltage transients that could otherwise lead to premature failure. Benefits of PPTC + TVS Diode Hybrid Solutions: Fuzetec FCTVS Products Ultra-fast response time: TVS diodes can react within nanoseconds, providing immediate protection against fast-rising surges. Precision protection: The low clamping voltage of TVS diodes ensures that downstream components are shielded from even minor voltage fluctuations. Robust overcurrent protection: The PPTC resettable fuse ensures that the circuit remains safe from overcurrent conditions, with automatic reset functionality. Why Choose Fuzetec for Hybrid Circuit Protection Solutions? Fuzetec stands out as a trusted provider of hybrid circuit protection products for several reasons: Proven expertise: With years of experience in the circuit protection industry, Fuzetec understands the challenges of modern electronics and provides reliable solutions tailored to specific industry needs. Innovative design: Fuzetec’s hybrid solutions combine cutting-edge materials and technologies, ensuring superior protection in a single, compact package. Customization options: Whether you need PPTC + MOV or PPTC + TVS hybrid devices, Fuzetec offers a wide range of products to suit various voltage, current, and application requirements. Conclusion Fuzetec’s hybrid circuit protection solutions—whether combining PPTC resettable fuses with MOV varistors or TVS diodes—provide unparalleled protection for modern electronics. These solutions ensure that circuits are protected from both overcurrent conditions and transient voltage surges, extending the lifespan of devices and reducing maintenance costs. By offering comprehensive protection in a compact form factor, Fuzetec’s hybrid devices are an excellent choice for applications ranging from automotive and industrial equipment to consumer electronics and telecommunications. Choose Fuzetec for reliable, innovative circuit protection that meets the demands of today’s fast-evolving electronic landscape.

Introduction As the global business landscape increasingly prioritizes sustainability, companies are seeking technologies that align with environmental, social, and governance (ESG) criteria. Resettable fuses, particularly Polymeric Positive Temperature Coefficient (PPTC) fuses, are a key innovation that not only protect electronic circuits but also contribute significantly to achieving ESG objectives. This article explores how resettable fuses are an essential component in driving sustainable development. What Are Resettable Fuses? Understanding PPTC Fuses Resettable fuses, commonly known as PPTC fuses, are specialized electronic components that protect circuits from overcurrent and short-circuit conditions. Unlike traditional single-use fuses, PPTC fuses can automatically reset after a fault condition is cleared, making them reusable and more sustainable. This technology operates by increasing resistance as the temperature rises, thus limiting the current flow during an overload situation. Once the circuit cools down, the fuse’s resistance decreases, allowing normal current flow to resume. The Role of PPTC Fuses in Modern Electronics PPTC fuses are widely used in various applications, including consumer electronics, automotive systems, and industrial equipment. Their ability to protect sensitive electronic components from damage while being reusable positions making them a valuable tool in designing sustainable products. Environmental Impact of Resettable Fuses Reducing Electronic Waste One of the most significant environmental benefits of PPTC fuses is their contribution to reducing electronic waste. Traditional fuses must be discarded and replaced after a single use, leading to a buildup of waste. In contrast, resettable fuses can be used multiple times, drastically reducing the volume of electronic waste generated. This aligns directly with the environmental (E) aspect of ESG, as companies seek to minimize their ecological footprint and impact. Lowering Carbon Footprint Through Energy Efficiency PPTC fuses also contribute to lowering the carbon footprint by improving energy efficiency. The need for fewer replacements means less energy is consumed in the production, transportation, and disposal of fuses. This reduction in energy consumption translates to lower greenhouse gas emissions, helping companies meet their carbon reduction targets and reinforcing their commitment to sustainability. Social and Governance Benefits of Resettable Fuses Enhancing Product Safety In the social (S) dimension of ESG, PPTC fuses play a crucial role in enhancing prevent electrical fires and equipment failures, safeguarding consumers and building trust in the brand. Safer products contribute to higher customer satisfaction and reduce the likelihood of legal liabilities, which is vital for maintaining a positive corporate reputation. Supporting Corporate Social Responsibility (CSR) Consumers are increasingly valuing companies that demonstrate a commitment to social responsibility. By integrating sustainable technologies like PPTC fuses into their products, companies can strengthen their CSR initiatives. This not only helps in building a positive brand image but also attracts environmentally-conscious customers who prefer to buy from responsible brands. Driving Compliance and Innovation Governance (G) in ESG is closely tied to a company’s ability to innovate and comply with regulatory standards. The use of PPTC fuses allows companies to meet stringent safety and environmental regulations without compromising on product performance. By adopting these advanced technologies, businesses can demonstrate their commitment to high standards of governance, ensuring long-term compliance and reducing the risk of regulatory penalties. The Future of Resettable Fuses in Sustainable Development Innovating for a Greener Future As global demand for sustainable products continues to rise, the role of resettable fuses in driving eco-friendly innovation will become increasingly significant. Companies that prioritize the integration of PPTC fuses in their product designs will not only meet current ESG standards but also position themselves as leaders in sustainable development. Collaborating Across Industries The potential for PPTC fuses to contribute to ESG goals is vast, and collaboration across industries can further amplify their impact. By sharing best practices and innovations, companies can collectively advance the use of resettable fuses, driving widespread adoption of sustainable technologies. Conclusion: Resettable Fuses as a Catalyst for ESG Success Resettable fuses, particularly PPTC fuses, are more than just circuit protection devices—they are a critical component in the pursuit of sustainability. By reducing electronic waste, improving energy efficiency, enhancing product safety, and ensuring regulatory compliance, PPTC fuses align perfectly with ESG goals. As companies continue to innovate for a greener future, resettable fuses will undoubtedly play a pivotal role in shaping sustainable, responsible business practices.

Introduction In the modern business landscape, environmental, social, and governance (ESG) policies have become crucial for companies aiming to build a sustainable future. Fuzetec Technology, a pioneer in the electronic components industry, is committed to integrating ESG principles into its core operations. This article explores Fuzetec Technology's ESG policy and its efforts to qualify for ISO-14064-1, an international standard for greenhouse gas (GHG) emissions accounting and reporting. Understanding ESG What is ESG? ESG stands for Environmental, Social, and Governance. These three criteria are essential for evaluating the sustainability and societal impact of a business: Environmental: Assessing a company's impact on the natural environment, including its carbon footprint, waste management, and energy use. Social: Evaluating how a company manages relationships with employees, suppliers, customers, and the communities where it operates. Governance: Reviewing a company’s leadership, executive pay, audits, internal controls, and shareholder rights. Importance of ESG in Business Implementing strong ESG policies can lead to: Enhanced reputation and brand loyalty Better risk management Improved financial performance Increased investment opportunities Greater regulatory compliance Fuzetec Technology's ESG Policy Environmental Stewardship Fuzetec Technology is committed to minimizing its environmental impact through several key initiatives: Energy Efficiency: Implementing energy-saving technologies and practices across its operations to reduce energy consumption and lower GHG emissions. Waste Management: Adopting comprehensive waste reduction strategies, including recycling and reusing materials, to minimize waste sent to landfills. Sustainable Sourcing: Ensuring that raw materials are procured from suppliers who adhere to environmentally responsible practices. Social Responsibility Fuzetec places a high value on social responsibility, focusing on: Employee Welfare: Providing a safe, healthy, and inclusive workplace with opportunities for professional development and growth. Community Engagement: Participating in community development projects and supporting local initiatives that promote social welfare and education. Ethical Practices: Upholding high ethical standards in all business operations, ensuring fair treatment of employees, customers, and other stakeholders. Robust Governance Effective governance is at the core of Fuzetec’s ESG policy: Transparency: Committing to transparent reporting and disclosure of its ESG performance and initiatives. Accountability: Establishing clear lines of accountability within the organization to ensure ESG goals are met and continuously improved. Compliance: Adhering to all relevant laws, regulations, and standards, including those related to environmental protection and social responsibility. Qualifying for ISO-14064-1 What is ISO-14064-1? ISO-14064-1 is part of the ISO-14064 series, which provides guidelines for GHG emissions accounting and reporting. ISO-14064-1 specifically focuses on the design, development, management, and reporting of GHG inventories. It helps organizations quantify their GHG emissions, identify reduction opportunities, and enhance transparency in their reporting. Steps to Qualify for ISO-14064-1 Initial Assessment Fuzetec began its journey toward ISO-14064-1 qualification with a comprehensive assessment of its current GHG emissions and environmental impact. This involved: Data Collection: Gathering data on energy consumption, production processes, and other activities contributing to GHG emissions. Baseline Establishment: Establishing a baseline GHG inventory to serve as a reference point for future measurements and improvements. Implementation of GHG Management System To meet ISO-14064-1 requirements, Fuzetec implemented a robust GHG management system, which included: GHG Inventory Management: Developing a comprehensive GHG inventory that tracks emissions from all significant sources within the organization. Emission Reduction Strategies: Identifying and implementing strategies to reduce GHG emissions, such as optimizing energy use, adopting cleaner technologies, and enhancing process efficiencies. Monitoring and Reporting: Regularly monitoring GHG emissions and reporting progress toward emission reduction targets. Verification and Validation The final step in the ISO-14064-1 qualification process is the verification and validation of Fuzetec's GHG assertions by an independent third party. This involves: Third-Party Verification: Engaging an accredited verifier to conduct a thorough verify of Fuzetec's GHG inventory. Verification Statement: Receiving a verification statement that confirms the accuracy and reliability of Fuzetec's GHG data and compliance with ISO-14064-1 standards. Benefits of ISO-14064-1 Qualification Qualifying for ISO-14064-1 offers several benefits to Fuzetec Technology: Enhanced Credibility: Demonstrates Fuzetec's commitment to sustainability and environmental responsibility, enhancing its reputation among customers, investors, and stakeholders. Regulatory Compliance: Ensures compliance with relevant environmental regulations and standards, reducing the risk of legal and regulatory penalties. Competitive Advantage: Differentiates Fuzetec from competitors by showcasing its proactive approach to managing and reducing GHG emissions. Operational Efficiency: Identifying and implementing emission reduction strategies can lead to cost savings and operational efficiencies. Fuzetec Technology’s Progress and Achievements Achieving 25% Green Electricity One of Fuzetec’s significant milestones in its sustainability journey is the procurement of 25% green electricity for its operations. This move not only reduces the company’s carbon footprint but also demonstrates its commitment to renewable energy sources. Continuous Improvement Fuzetec is dedicated to continuous improvement in its ESG efforts. The company regularly reviews its policies and practices to ensure they remain effective and aligned with evolving industry standards and stakeholder expectations. Collaboration and Innovation Fuzetec collaborates with industry partners, NGOs, and other stakeholders to drive innovation and sustainability in the electronic components sector. By sharing knowledge and best practices, Fuzetec aims to contribute to a more sustainable industry. Conclusion Fuzetec Technology's ESG policy and its qualification for ISO-14064-1 reflect the company’s dedication to sustainability and environmental stewardship. By implementing robust ESG policies and adhering to international standards for GHG management, Fuzetec not only enhances its credibility and competitive advantage but also contributes to the global effort to combat climate change and promote a more sustainable future. As Fuzetec continues to innovate and lead in the electronic components industry, its commitment to ESG principles will remain a cornerstone of its success. Find out more about Fuzetec ESG Policy and our road to RE:100, please visit Fuzetec's Commitment to Green Energy: A Path to RE100

Introduction PPTC (Polymeric Positive Temperature Coefficient) resettable fuses play a vital role in circuit protection, especially in high-reliability applications such as aerospace and space missions. These fuses must meet stringent outgassing and thermal cycling requirements to ensure performance in harsh space environments. This article delves into the significance of PPTC resettable fuses that meet the outgassing requirements of the ECSS-Q-ST-70-02C standard and their applications in low Earth orbit satellites, while also addressing the thermal cycling requirements crucial for space environments. The Importance of Outgassing Tests What is Outgassing? Outgassing refers to the release of gases trapped within materials, which can occur when they are exposed to a vacuum or high temperatures. In high-reliability applications such as aerospace and space missions, outgassing can cause contamination of sensitive instruments, leading to malfunctions or failures. ECSS-Q-ST-70-02C Standard The ECSS-Q-ST-70-02C standard, developed by the European Cooperation for Space Standardization (ECSS), specifies the requirements for the outgassing properties of materials used in spacecraft. Materials that pass this standard are deemed suitable for use in space environments, where low outgassing is critical to prevent contamination. Outgassing Test Procedure According to the ECSS-Q-ST-70-02C standard, the outgassing test involves several steps: Pre-conditioning of samples at 22°C and 55% relative humidity for 24 hours. Weighing of samples, empty sample cups, and collectors. Conducting a thermal vacuum test at 125°C in a vacuum of less than 10^-5 mbar for 24 hours. Weighing of samples and collectors after the thermal vacuum test. Post-conditioning of samples again at 22°C and 55% relative humidity for 24 hours. Final weighing of samples. The test results include: Total Mass Loss (TML):Total mass loss relative to the initial sample mass. Recovered Mass Loss (RML):Mass loss after water absorption during post-conditioning relative to the initial sample mass. Collected Volatile Condensable Material (CVCM):Mass gain of collectors relative to the initial sample mass. Thermal Cycling Requirements in Space Environments What is Thermal Cycling? Thermal cycling involves subjecting materials to repeated temperature changes, which can cause stress due to differential expansion or contraction. In space, components frequently experience extreme temperature fluctuations as they move in and out of direct sunlight or between different operational states. Importance of Thermal Cycling Resistance Components used in space must withstand these repeated temperature changes without degradation in performance. Thermal cycling resistance is crucial to prevent cracking, warping, or other failures that could compromise the mission. Testing for Thermal Cycling Resistance Thermal cycling tests involve exposing the component to a series of temperature cycles, typically ranging from low to high temperatures, to simulate the thermal conditions in space. The component's performance is monitored to ensure it can withstand these conditions without failure. For more detailed information on thermal cycling tests, you can visit the NASA S3VI Knowledge Base. Importance in Space Applications Spacecraft Reliability Minimizing outgassing helps maintain the cleanliness and reliability of spacecraft components over the duration of their missions. Optical Performance Controlling outgassing is critical for optical systems where even small amounts of contaminants can degrade performance. Contamination Control Outgassing tests are part of broader contamination control efforts to ensure that materials used in space do not compromise mission objectives or the longevity of spacecraft operations. PPTC Resettable Fuses and ECSS-Q-ST-70-02C Qualification Importance of Low Outgassing in Space Applications In space applications, the integrity and reliability of materials are paramount. Low outgassing materials prevent the release of volatile compounds that can condense on and damage sensitive equipment. PPTC resettable fuses qualified to the ECSS-Q-ST-70-02C standard ensure they are safe for use in these demanding environments. Benefits of Using Qualified PPTC Resettable Fuses Reliability PPTC resettable fuses that meet the ECSS-Q-ST-70-02C standard offer high reliability, ensuring consistent performance in critical applications. Safety These fuses provide robust protection against overcurrent conditions, reducing the risk of circuit damage and potential mission failures. Cost-Effectiveness The self-resetting feature of PPTC fuses eliminates the need for manual replacement, saving time and maintenance costs. Applications of PPTC Resettable Fuses in Space Low Earth Orbit (LEO) Satellites Low Earth Orbit (LEO) satellites operate at altitudes between 180 km and 2,000 km above the Earth's surface. These satellites are increasingly used for communication, Earth observation, and scientific research. The proximity to Earth offers reduced latency for communication signals and higher resolution for imaging applications. Circuit Protection in LEO Satellites LEO satellites are equipped with numerous electronic circuits that require protection from overcurrent conditions. PPTC resettable fuses ensure the longevity and reliability of these circuits, preventing disruptions in satellite operations. The harsh environment of space, including exposure to radiation, extreme temperature variations, and thermal cycling, necessitates the use of components that can withstand these conditions while maintaining low outgassing properties. Satellite Communication Systems Reliable communication is critical in space missions. LEO satellites, in particular, rely on robust communication systems to transmit data back to Earth. PPTC resettable fuses safeguard communication equipment from overcurrent events, ensuring continuous and stable communication links. This reliability is crucial for maintaining data integrity and mission success. Earth Observation Instruments Space missions often carry sensitive scientific instruments for Earth observation, weather monitoring, and environmental studies. These instruments must operate flawlessly to provide accurate data. PPTC resettable fuses qualified for low outgassing protect these instruments from electrical faults, maintaining the integrity of scientific data and ensuring that observations are accurate and reliable. Selecting the Right PPTC Resettable Fuse Key Considerations When selecting a PPTC resettable fuse for space applications, consider the following factors: Current Rating Ensure the fuse can handle the normal operating current of the circuit without tripping unnecessarily. Voltage Rating The fuse must be rated for the voltage levels present in the application to prevent breakdown or failure. Trip Current The trip current should be set appropriately to protect the circuit without causing nuisance tripping. Reset Time Consider the time it takes for the fuse to reset after tripping, ensuring it aligns with the application’s requirements. Compliance with ECSS-Q-ST-70-02C Always verify that the selected PPTC resettable fuse complies with the ECSS-Q-ST-70-02C standard for outgassing. This compliance ensures the fuse is suitable for use in space environments, minimizing the risk of contamination and ensuring mission success. Thermal Cycling Resistance Ensure the PPTC resettable fuse is tested and qualified for thermal cycling resistance. This qualification guarantees that the fuse can withstand the repeated temperature changes typical in space environments without compromising its performance or reliability. Conclusion PPTC resettable fuses play an indispensable role in protecting electronic circuits, particularly in high-reliability applications such as low Earth orbit satellites. Fuses that meet the stringent outgassing requirements of the ECSS-Q-ST-70-02C standard and are resistant to thermal cycling provide reliable, cost-effective, and safe protection for critical circuits. By understanding the importance of these components and selecting the right fuses, engineers can ensure the success and longevity of their projects in the demanding conditions of space. Find out more aboout Fuzetec FSMDH High Temperature Products and ECSS-Q-ST-70-02-C Standards.

Introduction In the highly competitive market of modern manufacturing, efficiency, flexibility, and precision are the keys to success. To meet these challenges, Fuzetec Technology has developed an advanced Intelligent Scheduling System. This system leverages automation, digitalization, and real-time data to optimize production schedules, reduce waste, and maximize resource utilization. In this article, we will explore the various components of Fuzetec Technology's Intelligent Scheduling System and how it helps us to achieve greater operational efficiency. Key Features of Fuzetec Technology Intelligent Scheduling System 1. Maximizing Equipment Utilization and Production Planning One of the primary objectives of Fuzetec Technology Intelligent Scheduling System is to ensure that production lines run smoothly and according to plan. The system is designed to maximize equipment utilization, minimizing idle time and ensuring that all machines are working at peak efficiency. The scheduling system evaluates current production goals and available resources to create an optimized production plan. By doing so, it ensures that every equipment is being utilized effectively and efficiently, resulting in minimal downtime. This level of optimization also extends to labor resources, allowing workers to be assigned to the most critical tasks, which maximizes overall productivity. 2. Flexibility to adapt to rapidly Market Demand Fuzetec Technology Intelligent Scheduling System is not just about maximizing efficiency—it also provides the flexibility to adapt to the rapidly changing market demands. The system continuously monitors both market demand and inventory levels, allowing it to adjust the production schedule in real-time. This dynamic adjustment capability is particularly valuable when dealing with unexpected surges in demand, such as urgent orders or seasonal spikes. The system reserves a portion of production capacity specifically for rush orders, ensuring that these can be accommodated without disrupting ongoing production plans. This flexibility ensures on-time delivery for all orders, helping us to meet customer expectations and stay competitive. 3. Production Process Optimization through Automation Automation is at the core of Fuzetec Technology Intelligent Scheduling System. By integrating automated processes, the system reduces human intervention, minimizing the potential for errors and delays. The system can continuously monitor production data and identify opportunities for improvement, allowing for real-time process optimization. Furthermore, the system automates task allocation based on the current production needs. It analyzes available workstations, labor, and equipment, then automatically assigns the most suitable resources to the tasks at hand. This process ensures that production is both efficient and responsive to changes in the manufacturing environment. 4. Reducing Production Cycle Time One of the most significant benefits of Fuzetec Technology Intelligent Scheduling System is its ability to shorten production cycle times. Through automation and process optimization, the system eliminates inefficiencies and bottlenecks that can slow down production. By minimizing production delays and optimizing workflow, businesses can achieve faster turnaround times for their products. This not only helps to meet customer demands more quickly but also increases the overall throughput of the production facility. A shorter production cycle means that businesses can handle more orders in a shorter time, increasing their capacity to generate revenue. 5. Automated Decision-Making for Task Allocation The Intelligent Scheduling System incorporates sophisticated algorithms to automate the decision-making process. These algorithms take into account various factors, such as production requirements, equipment availability, and resource utilization, to create the most efficient scheduling plan. Through automated task allocation, the system assigns work to the most appropriate production units or machines based on their availability and suitability for the task. This reduces the need for manual intervention, which not only saves time but also reduces the potential for human error. As a result, production efficiency is significantly increased, and the risk of downtime due to poor scheduling is minimized. 6. Optimizing Scheduling Rules for Improved Efficiency Fuzetec Technology Intelligent Scheduling System uses advanced algorithms to optimize scheduling rules, ensuring that the production plan is as efficient as possible. These algorithms take into account various production factors, such as minimizing changeover time between tasks, maximizing equipment utilization, and ensuring the optimal sequence of production jobs. This rule-based optimization results in a production schedule that maximizes efficiency while minimizing costs. By generating the most efficient scheduling plans, we can reduce unnecessary delays, minimize waste, and make the best use of their production resources. 7. Dynamic Response to Real-Time Changes The manufacturing environment is constantly changing, and the ability to respond quickly to these changes is critical. Fuzetec Technology Intelligent Scheduling System is equipped with real-time monitoring capabilities that allow it to dynamically adjust the production schedule based on actual conditions. Whether it’s a machine breakdown, a sudden change in demand, or a supply chain disruption, the system can quickly recalculate the schedule to minimize the impact of these changes. This real-time adjustment capability ensures that the production plan remains optimal and that disruptions are managed efficiently. 8. Data-Driven Continuous Improvement The system is not only reactive but also proactive in its approach to production management. By analyzing historical production data and monitoring current performance metrics, it identifies bottlenecks, inefficiencies, and areas for improvement. With this data-driven approach, we can continuously improve their production processes, reducing waste, improving product quality, and ultimately increasing profitability. The system provides actionable insights that allow for informed decision-making and long-term strategic planning. 9. Cost Reduction and Resource Optimization One of the core benefits of Fuzetec Technology Intelligent Scheduling System is its ability to reduce production costs. By optimizing the use of labor, equipment, and materials, the system ensures that resources are allocated in the most efficient way possible. The system also minimizes the time required for production changeovers and reduces material waste, both of which contribute to lower operational costs. As a result, businesses can increase their profit margins without compromising on product quality or delivery times. Conclusion Fuzetec Technology Intelligent Scheduling System is a powerful tool for us to optimize production processes, reduce costs, and increase efficiency. With features like automated task allocation, real-time monitoring, and data-driven insights, the system allows businesses to be more agile and responsive to market demands. By integrating automation and advanced scheduling algorithms, the system helps us to not only stay competitive but also thrive in today’s fast-paced industrial environment.

Introduction As the demand for sleek, high-performance portable consumer electronics continues to rise, so does the reliance on rechargeable Lithium-ion (Li-ion) and Lithium-Polymer (Li-Polymer) batteries. These batteries power a vast array of devices, from smartphones and tablets to drones and e-bikes, thanks to their high energy density and flexible form factors. However, ensuring the safety and reliability of these power sources is critical. This article explores the essential protection mechanisms for Li-ion and Li-Polymer batteries, highlighting solutions offered by Fuzetec to safeguard against common faults such as short circuits and overcharging. The Necessity of Battery Protection Vulnerabilities of Li-Ion Batteries Li-ion batteries are susceptible to various faults that can compromise their integrity and safety. These include external shorts, runaway charging conditions, and abusive overcharging, all of which can lead to hazardous overcurrent and overtemperature situations. Overcharge, deep-discharge, or short circuit conditions can generate excessive heat, causing the battery cell to bloat, rupture, or even ignite. Internal cell failures, while less common, can also affect the complex electronics on the battery pack’s Protection Circuit Module (PCM), such as the fuel gauge or charge controller. Consequently, multiple levels of protection against overcharge, over-discharge, overtemperature, and overvoltage conditions are essential to prevent thermal runaway and potential failure. Regulatory Compliance Safety regulations and test requirements from organizations like UL, IEC, and IEEE are in place to ensure the resilience of Li-ion and Li-Polymer battery packs against short circuits and overcharge events. Standards such as UL2054, IEEE 1725-2011, and IEC 62133 provide guidelines to demonstrate battery safety in various applications. Protection Strategies Short Circuit Conditions Unprotected battery cells can deliver extremely high currents when subjected to a short circuit, leading to significant temperature rises. This can result in thermal runaway, causing severe damage or fire. Accidental short circuits, such as those caused by metal objects bridging exposed terminals, further underline the need for robust protection mechanisms. Overcharge Conditions Proper charging profiles are critical to optimize battery performance and safety. Overcharge conditions, typically resulting from charger faults or the use of incompatible chargers, can cause significant temperature increases, leading to chemical degradation of the cell components. Overcurrent or overvoltage conditions exacerbate this issue, emphasizing the need for precise protection solutions. Advanced Protection Solutions by Fuzetec PPTC Resettable Fuses Fuzetec's PPTC (Polymeric Positive Temperature Coefficient) resettable fuses provide an effective solution for both short circuit and overcharge protection. These devices rapidly increase in resistance when exposed to excess current, limiting the fault current and preventing thermal runaway. Once the fault is cleared and power is cycled, the device returns to its low-resistance state. PPTC resettable fuses offer significant advantages over traditional bimetal or thermal fuse protectors, including lower cost, reduced bulk, and improved reliability. Unlike one-shot fuses, PPTC devices reset themselves, avoiding unnecessary field returns due to non-resettable protection devices. Implementation of PPTC Devices Strap Products PPTC strap products, including the FVL, FVT, FSR, and FLR families, are designed for various battery chemistries and usage profiles. These devices can be spot welded to battery cells or straps, providing a space-saving solution for cylindrical, prismatic, and pouch packs. Fuzetec Strap Series Operation Current: FVL Series 1.7A~2.3A ; FVT Series 1.1A~2.4A FLR Series 1.9A~7.3A ; FSR Series 1.2A~4.2A Maximum Voltage: 12V ~ 30VDC Rechargeable Battery Packs, Lithium Cell and Battery Packs Surface-Mount Products Fuzetec’s surface-mount products, available in standard 1206 and 1210 packages, are well-suited for battery PCMs. These devices save board space and ease design complexity, offering low resistance to maintain system impedance budgets. Fuzetec FSMD 1210 series Operation Current:0.05A ~2.00A VMAX:6VDC~60VDC IMAX: 100A. All High-Density Board Fuzetec FSMD 1206 Series Operation Current:0.05A ~2.00A VMAX: 6VDC~60VDC, IMAX: 100A. All High-Density Board Disc Products PPTC disc devices, made of PPTC material, are placed inside Lithium-ion 18650 cylindrical cell headers to protect cells during shipping and handling. These custom-designed devices also provide protection for individual cells sold for consumer use. Selecting the Right Protection Devices Choosing the appropriate protection devices for a specific application involves understanding the protection requirements based on cell chemistry and application conditions. System tests should be conducted to determine the suitability of a protection device, with recommendations from device manufacturers serving as a starting point for further investigation. Conclusion As portable electronics continue to evolve towards thinner and more compact designs, the need for reliable and efficient battery protection becomes increasingly critical. Fuzetec offers a comprehensive range of PPTC resettable fuses, MHP-TA thermal cutoff devices, and other innovative solutions to meet the diverse protection needs of modern Li-ion and Li-Polymer battery packs. By integrating these advanced protection devices, designers can ensure the safety, reliability, and longevity of their battery-powered products.

Introduction Fuzetec has good reputation in the electronic components industry, with our PPTC products being widely utilized by famous brands in automotive such as Tesla and consumer electronics applications. Our products provide reliable overcurrent protection, maintaining devices cause the damage by over current. In a competitive market, selecting high-quality and dependable electronic components is critical. Fuzetec's PPTC products are known for their exceptional performance and reliability, making them to be the preferred choice for many famous brands. Industry Certifications and Compliance Fuzetec's product is underscored by our compliance with several key industry certifications: RoHS (Restriction of Hazardous Substances): Our products meet the RoHS standards, ensuring they don’t include hazardous materials and safe for the environment. Compliance with RoHS means that our PPTC products do not contain substances like lead, mercury, cadmium, and other toxic chemicals that could harm the environment or human health. REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals) SVHC (Substances of Very High Concern): Fuzetec's PPTC products comply with REACH regulations, guaranteeing that our products do not contain harmful chemicals that could impact human health or the environment. This compliance ensures that we are proactive in identifying and managing risks from chemicals used in our products, protecting both consumers and the environment. IATF 16949 (International Automotive Task Force): This certification shows that we are dedicated to maintaining high-quality management standards in the automotive industry, insure our products meet the requirements of automotive manufacturers. The IATF 16949 certification signifies our commitment to continuous improvement, defect prevention, and reduce waste in the automotive supply chain. Comply with these certifications, Fuzetec demonstrates a strong commitment to quality, safety, and environmental protection, enhance the trust our customers place in our products. Proven Applications in Automotive Industry and Consumer Electronics Fuzetec PPTC Products in Operation Automotive Industry Applications The automotive industry demands need to be high quality performance and reliability under strict conditions. Fuzetec’s PPTC products are specifically designed to meet these demands. Application: Battery Management Systems (BMS) PPTC devices protect the battery cells from overcurrent to ensure safety and the battery longevity. This application significantly reduces the risk of battery failure and improves system reliability. In electric vehicles (EVs), a well-protected BMS is important for optimal performance, as it manages the power distribution and ensures the safety of the vehicle’s batteries. Application: GPS Tracker Systems PPTC products are necessary for protecting components in GPS tracker systems, avoiding potential damage from overcurrent. Applying PPTC helps to maintain the integrity of GPS tracker systems, ensuring accurate tracking and long-term functionality. This dependability is essential for fleet management, asset tracking, and personal safety devices that rely on GPS technology. Additionally, PPTC devices are used in other automotive applications such as infotainment systems and lighting systems, providing overcurrent protection that helps keep the safety and functionality up of these systems. Consumer Electronics Applications Consumer electronics include many products in our living space. Fuzetec’s PPTC products are making these devices working safety and not to be cause for any damage. Application: Smart Home Devices PPTC products are essential for protecting an amount of smart home devices from overcurrent effects, ensuring ther’re the devices can be used in a long term. Fire Alarms:PPTC devices in fire alarms prevent damage from power surges, helps the safety devices remain operational when needed most. Reliable overcurrent protection is important for emergency early detection. Doorbells:Nowadays, the smart doorbells are not just rings functional, also features like video streaming and two-way communication, but it may be happened the overcurrent damage. So PPTC products protect these components, ensuring continuous operation and avoiding costly replacements. Intercoms:Home intercom systems rely on uninterrupted power to maintain clear communication throughout the home. PPTC protection preserves these system functions. Security Systems:Comprehensive home security systems, including cameras and alarm panels, require their consistent and uninterruptible power. PPTC devices safeguard these systems against over current, reducing the risk of system failures and enhancing overall home security. Besides smart home devices, Fuzetec’s PPTC products are used in smartphones, laptops, and other portable electronics, protecting batteries, USB ports, and other critical components from overcurrent damage. This protection is important for making device well performance and make sure user safety. The Advantages of Using Fuzetec's PPTC Products Enhanced Device Longevity and Reliability By incorporating Fuzetec’s PPTC products into your designs, will be ensured enhanced longevity and reliability of your devices. PPTC respond to overcurrent conditions by increasing their resistance, effectively limiting the current and protecting the circuit. Once the fault condition is cleared, the PPTC device resets automatically, allowing normal operation to resume. Cost-Effective Protection PPTC devices offer a cost-effective solution for overcurrent protection. Unlike traditional fuses that need to be replaced after a single fault event, PPTC devices are self-resetting, reducing maintenance costs and times. Wide Range of Applications Fuzetec’s PPTC products can be used in a wide range of applications, from small consumer devices to large industrial systems. Their ability to provide reliable overcurrent protection in different environments makes them a valuable component for designers and engineers using. Commitment to Sustainability Fuzetec is dedicated to sustainability and environmental responsibility. Our products are designed to comply with environmental regulations, such as RoHS and REACH. By choosing Fuzetec’s PPTC products, you contribute to a greener future by reducing the use of hazardous substances and minimizing electronic waste. Fuzetec's PPTC Products: Trusted for Automotive Industry and Consumer Electronics Fuzetec's PPTC products have proven to be a reliable solution for overcurrent protection. Our commitment to quality makes our partners succeed in their respective markets. By choosing Fuzetec, you are investing in the longevity and performance of your devices. Find out more about Fuzetec Products

Introduction Fuzetec products are distributed globally, so you can typically find them in many countries. Here are the countries where Fuzetec products are available. Fuzetec China Office - Dongguan Established in 2004 to serve Southern China customers. Mostly consumer electronics and Industrial market. Promote and distribute Fuzetec products backed up by its abundant and diverse stock to ensure speedy delivery. Fuzetec China Office - Suzhou Established in 2007 to serve Eastern China customers. Mostly Automotive and Industrial market. Promote and distribute Fuzetec products backed up by its abundant and diverse stock to ensure speedy delivery. India - Enerdyne Devices Pvt. Ltd. Enerdyne works with world’s leading manufacturers, bringing technology and innovation from across the globe to the emerging market of India. We facilitate business and create value by connecting people & resources , creating efficient supply chains, offering technical support and value added manufacturing. Our expert sales teams work with some of the largest enterprises in India to develop services and solutions. Japan - PICO Inc. PICO always give it our best shot to supply test probes and high quality fuses to electronic equipment industry and industrial machinery industry in Japan and other Asian countries. In addition, we promote corporate activities that lead to customer satisfaction and environmental preservation. Fuzetec Korea Office Serving Korea market, especially in Automotive market. Joint design with Tier 1 automotive suppliers by offering innovative solutions to lead future industry trends of Automotive. Provides customer service, techincal support and expanding the Fuzetec market in Korea. Korea - Parts Bank Parts Bank Co., Ltd. is a leading supplier of Semi Conductor & Electronic Components in Korea since 2003. We have developed our relationship with our Partners and customers based on solid Partnership & deep trust with our wide view which makes win-win strategy between the components manufacturer and customers. Korea - Intopion Intopion Co.,Ltd. is a professional distributor carries a variety of active and passive electronic components. Malaysia - Powertage Electronics Sdn Bhd Powertage Electronics Sdn Bhd (814889-M) believes in supplying quality products, competitive pricing, plus professional services are the key principles to become a strong and reliable company. Through these principles, we are able to become the important stakeholder and even partner for both clients and suppliers. For more accurate information, please refer to Find Distributor where authorized distributors and retailers in specific countries are listed.

Introduction Fuzetec products are distributed globally, so you can typically find them in many countries. Here are the countries where Fuzetec products are available. BRAZIL - Repcom Comp. Eletr. S/S Ltda Repcom Componentes Eletrônicos has been acting as a sales representative for some of the world's leading manufacturers of electronic components. Repcom acts as an interface between customers and represented companies, offering all technical and sales support to its customers. Canada - DB LECTRO DB Lectro offers quality electronic components that meet the highest standards of the electronic products industry. We support you in the thought process, research and design of new products and accompany you until their production. Canada - Diverse Electronics Headquartered in Montreal, Canada, Diverse Electronics has its main office and distribution center with over 50,000 products ready to ship worldwide. Diverse also has dedicated sales teams across Canada. With representation in Toronto, Quebec City, Calgary, Vancouver and Eastern Canada. Canada - Megastar Electroniques Inc. Founded in 1989, MEGASTAR ELECTRONIQUES INC. is a well-known independent stocking distributor of a wide range of quality electronic components. Canada - Utech Utech Electronics was created in 1991 to fill a void in the Canadian marketplace for a distributor specializing in SURFACE MOUNT TECHNOLOGY. We have succeeded in servicing O.E.M. customers and their contracted manufacturing facilities. We are capable of servicing the most diverse requirements from our customer base With our world-class manufacturers, we offer quality components from stock at competitive prices with on time delivery. USA - RFE International Since 1984, RFE International has served the World’s finest manufacturing companies. Over these years, we have all seen a lot of changes to our World. At RFE we embrace these changes while continuing to believe in our Founder’s core principles: Treat all of our customers and partners right A commitment to doing the job right, each and every time, Always do what is right and good for everyone. Whether you are a new customer, a distributor, or have been with us since the beginning, be assured that we will continue to meet your needs quickly and professionally at a fair price. Reliable, Fast, and Efficient, RFE International, Inc. is your best choice for Electronic Components. For more accurate information, please refer to Find Distributor where authorized distributors and retailers in specific countries are listed.

Introduction Fuzetec products are distributed globally, so you can typically find them in many countries. Here are the countries where Fuzetec products are available. Czech Republic - Semic Trade, s.r.o. Semic Trade, S.R.O. is a company in Czech Republic, with a head office in Prague. It operates eshop with a variety of electronic components, like Semiconductors Optoelectronics, Circuit Protection, Chokes, EMI, Transformer, Cores, Bobbins, Connection elements Switches, Relays, Wires, Tubing, Cables, Sensors Thermal Management + EMI/RFI and Mechanical parts. Denmark - Cabcon A/S Cabcongroup is a Scandinavia based supplier of passives, electromechanical components, and cable harness for the industry – Globally. Our business is based on relations, communication, and trust. We strive to provide the best solution to the given application in close collaboration with our customers and suppliers. We consider ourselves a design partner and with experienced staff and a strong supplier base, we help to optimize processes and build technology for a better future. Finland - PEREL OY Perel Oy, over 50 years of importing and business Perel Oy is a Finnish-owned family company importing Electronic Components, Automation, Testing&Measuring Equipment, ESD-protection Products, Clean Room Products, Mechanics and Production Machinery. Perel Oy has more than 50 year experience in quick and competent customer service, starting in 1970. France - OMEGA COMPOSANTS SARL Omega Fusibili, a leading distributor of electronic, electromechanical and electric components The Omega brand has been the trademark of a company of primary importance and of absolute reliability both in the field of fuses and for everything related to protection, security, connection and switching since 1947. Germany - ESKA Erich Schweizer GmbH ESKA supply safety electronics products of technical excellence – based on partnership and forward-looking orientation and always in alignment with the interests of society. For 100 years, ESKA has been standing for device protection in the form of fuses and passive components. Germany - INDEG GmbH INDEG GmbH, an Industrial Electronics Consulting and Sales Company, has been a trusted distributor and design-in sales partner in Germany for over 40 years. INDEG specialize in both active and passive electronic components, offering comprehensive Customer support through our team of highly qualified sales engineers who serve clients nationwide. Our office team works closely with the field to service to provide assistance with pricing, delivery times, technical support and application solutions. Italy - OMEGA FUSIBILI S.P.A. Omega Fusibili, a leading distributor of electronic, electromechanical and electric components The Omega brand has been the trademark of a company of primary importance and of absolute reliability both in the field of fuses and for everything related to protection, security, connection and switching since 1947. Netherlands - TOP Electronics TOP-electronics is a specialized technology provider, distributor, and representative of electronic components, modules, and solutions. As a partner of several world-leading high-tech suppliers, we have been serving the OEM market with electronic and electromechanical components since 2005. Over the years, TOP-electronics has developed deep expertise in the international market, fostering strong relationships with both customers and suppliers. As a result, we can provide top-quality products that meet specific requirements, at competitive prices, with efficient logistics solutions. Poland - And Pol Elektronik Andpol Elektronik was established in May 1995. The beginning of the company's activity was related to servicing individual customers, we met the needs mainly in the scope of passive elements . The dynamically developing electronics market in Poland in the 90s allowed us to expand the offer also with active elements . Spain - COMPONENTES ELECTRONICOS ELCO, S.A. Componentes Electrónicos Elco, S.A., founded in 1988, specializes in the wholesale of electronic components and equipment. From the outset, we have worked diligently to establish ourselves in the challenging electronics market with highly satisfactory results, thanks to the trust placed in us by both clients and suppliers. Spain - EUROTRONIX, S.A. Eurotronix was born as a family project in 1986 with a great entrepreneurial spirit in the distribution of electronic and electromechanical components. We pursue the goal of generating added value beyond the expectations of our customers in a dynamic and competitive world, supported by the work of our team as well as the experience and confidence of our suppliers. Ukraine - GAMMA Ukraine Ukraine - SEA Electronics SEA Company was founded in 1990, who has been a leading supplier of certified, innovative equipment, accessories and electronic components for 30 years. We are a strong developer and manufacturer of modern automated systems for various manufacturing companies, government agencies & other organizations. United Kingdom - ATC Semitec ATC Semitec is the UK’s leading distributor with over 25 year’s experience in the thermal controls industry and ISO9001:2015 accreditation, we work with innovative manufacturers on both NPD and product improvement projects across a wide spectrum such as hybrid vehicles, personal appliances, battery packs, office automation, fire & security detectors and medical devices. For more accurate information, please refer to Find Distributor where authorized distributors and retailers in specific countries are listed.

Introduction Fuzetec products are distributed globally, so you can typically find them in many countries. Here are the countries where Fuzetec products are available. Israel - Omarim technologies ltd. Omarim Technologies Ltd operates as a representative for manufacturers of electronic components, power products, optoelectronic displays, RF components/modules and Accessories in the Israeli market . Turkey - Özdisan Elektronik A.Ş. Özdisan Elektronik A.Ş. was founded in 1980. Özdisan distributes a wide range of passive & active electronic components including power semiconductors, semiconductors, capacitors, rectifiers, LCD modules, DRAMs, flash memories & memories, voice IC, microcontroller, sensors & detectors, LED’s, TFT’s, relays, fans. Besides, Özdisan expanded its business on PCB & PCB Assembly , and LED Lighting Solutions, Aluminium Coolers, TFT LCD Panel and Modules. For more accurate information, please refer to Find Distributor where authorized distributors and retailers in specific countries are listed.