Whether you're in the automotive, industrial, or residential sector, our fuses are tailored to meet diverse needs. They come in a variety of sizes, shapes, and ratings to support multiple applications, from simple home appliances to complex machinery.
Prosemi offers proven, reliable overcurrent solutions. Our global reputation is built from years of engineering and design expertise. Our fuses and devices safeguard sensitive electronic systems. From automotive to industrial applications, our products meet global standards, protecting equipment worldwide.
Product Features
Ensures fast response time and high current accuracy with a compact, PCB-saving design, compliant with RoHS and safety certifications.
Product Applications
Ideal for protecting consumer electronics, automotive and EV systems, battery management systems, industrial equipment, power supplies, renewable energy systems, as well as flat panel displays and televisions.
Product Advantages
Provides rapid response to overcurrent for reliable circuit protection, stable performance under thermal and electrical stress, and high efficiency with minimal power loss. Its compact design suits high-density PCBs, ensuring long service life and dependable safety for critical electronic systems.
products cate
Chip Fuses, also known as surface-mount fuses (SMD fuses), are compact circuit protection devices designed to safeguard electronic systems from overcurrent and short-circuit conditions. With their small footprint and precise current-limiting performance, chip fuses are ideal for high-density PCB designs where space efficiency and reliability are critical.
Brick Fuses are high-current, surface-mount fuses designed to provide reliable overcurrent protection in power-intensive electronic systems. Their robust rectangular structure—similar to a “brick” shape—offers superior thermal stability, mechanical strength, and efficient heat dissipation, making them ideal for demanding environments.
SMD Resettable Fuses, also known as PTC (Positive Temperature Coefficient) fuses, are polymer-based circuit protection devices that automatically reset after a fault condition is cleared. Unlike traditional one-time fuses, they return to their normal conductive state once the overcurrent or overtemperature event subsides, eliminating the need for replacement and reducing maintenance costs.
| Type | Resistance Range | Key Features | Typical Applications |
|---|---|---|---|
| Chip Fuse (SMD Type) | 10 mΩ – 500 mΩ | Compact size, fast response, low resistance | Mobile devices, communication modules, consumer electronics |
| Brick Fuse | 0.5 mΩ – 20 mΩ | High current handling, strong thermal stability, low voltage drop | Battery management systems, DC-DC converters, automotive electronics |
| Bolt Down Fuse | < 0.5 mΩ | High power rating, durable housing, reliable contact | EV batteries, power distribution units, energy storage |
| SMD Resettable (PTC Fuse) | 0.1 Ω – 10 Ω | Self-resetting, reusable, space-saving design | IoT devices, small appliances, portable power systems |
| DIP PPTC Fuse | 0.2 Ω – 15 Ω | Reusable, through-hole mounting, cost-effective | Power adapters, telecom, industrial control |
| PV Fuse | < 1 mΩ | High voltage endurance, arc suppression, stable protection | Solar panels, inverters, renewable energy systems |
| EV Fuse | < 1 mΩ | Designed for high voltage and current, meets automotive standards | Electric vehicles, charging stations, power modules |
| Ceramic Tube Fuse | 10 mΩ – 200 mΩ | Strong insulation, flame-retardant, stable performance | Power supplies, household appliances, test equipment |
product advantages
Specialized in SMD and brick fuses with accurate current ratings and consistent performance.
Automated lines ensure low resistance, fast response, and excellent heat dissipation.
PTC resettable designs provide reusable circuit protection and lower maintenance costs.
All products meet RoHS and AEC-Q200 standards, ensuring durability and reliability across industries.
They are widely applied in battery management systems, automotive electronics, DC-DC converters, and industrial control equipment.
Select a fuse rated about 125–150% of your normal operating current and ensure it matches the voltage, time-delay, and environmental conditions of your circuit.
They contain a metal element that melts when excessive current flows through, instantly disconnecting the circuit to prevent overheating or short circuits.
PROSEMI provides a full range of overcurrent protection products, including:
Chip Fuses – compact SMD design for consumer and portable devices.
SMD Resettable (PTC) Fuses – automatically recover after fault removal.
Brick Fuses – high-current fuses for power modules and automotive systems.
EV Fuses – optimized for electric vehicle battery and charging systems.
Ceramic Tube Fuses – traditional high-voltage protection with strong insulation.
PV Fuses – designed for photovoltaic (solar) power protection.
DIP PPTC Fuses – through-hole resettable fuses for industrial and power supplies.
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