Bourns 1.35 A Resettable Fuse 72V Radial Leaded MF-RX135/72-0

Bourns MF-RX135/72-0 is a 1.35 A resettable fuse designed to protect electrical and electronic circuits from excessive currents by automatically switching from a low resistance state to a high resistance state during faults. It operates at 72 V rated voltage and has a current rating of 40 A along with a hold current of 1.35 A.

This radial leaded device features a cured flame retardant epoxy polymer insulating material meeting UL 94V-0 standard, ensuring safety and reliability in demanding environments. The fuse provides a trip current of 2.7 A within approximately 9.6 seconds, effectively safeguarding sensitive components.

The compact dimensions of 12.26 mm length, 18.26 mm height, and 3.1 mm width, combined with a 0.81 mm lead diameter, allow for seamless PCB mounting in various industrial and commercial applications.

It supports a temperature range from -40°C to 85°C, making it suitable for diverse climatic conditions. The fuse's low power dissipation of 1.7 W and minimum resistance of 0.12 Ω enhances energy efficiency while maintaining protection performance.

Main applications include security systems, power supplies, transformers, power switching devices, automotive and medical equipment, instrumentation, control systems, computers and peripherals, as well as audio-visual and telecommunications equipment.

The fuse automatically resets thousands of times without the need for replacement. It is maintenance free and small in size, eliminating the need for fuse holders. Rapid and automatic reset ensures fast recovery after fault clearance.

Radial lead orientation facilitates easy integration into PCB designs. Compliance with RoHS and UL standards guarantees environmental and safety adherence. This Bourns resettable fuse is ideal for industrial, laboratory, commercial, automotive, and manufacturing environments where reliable overcurrent protection is critical.

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