MF-USMF020-2

The Bourns MF-USMF020-2 is a resettable polymeric PTC (Positive Temperature Coefficient) fuse designed for overcurrent protection in electronic circuits. It provides fast tripping resettable circuit protection suitable for automotive and industrial applications. The device holds a steady current of 200 mA and trips at 400 mA, with a maximum voltage rating of 30 V and an interrupt current capacity of 10 A. Its low resistance, ranging from 0.4 Ω to 5 Ω, minimizes power loss during normal operation. The tripped power dissipation is typically 0.6 W, and the time to trip at 8 A is 20 ms, ensuring rapid response to overcurrent conditions.

This component is qualified to AEC-Q200 Rev-D stress test qualification, making it suitable for automotive applications. It is surface mount packaged in a compact 1210 (3225 metric) footprint with concave termination, enabling automated assembly. The device offers RoHS compliance, halogen-free construction per Bourns definition, and a moisture sensitivity level of 1 (unlimited). It also carries REACH unaffected status and a California Proposition 65 warning.

Designed for use in battery protection, USB ports, power supplies, and automotive electronics, the MF-USMF020-2 provides reliable resettable overcurrent protection without the need for replacement after a fault event. Its small footprint and fast tripping characteristics make it ideal for space-constrained designs requiring resettable circuit protection.