Littelfuse 0.05 A Resettable Fuse 60V Radial Lead PolySwitch RXEF Series RXEF005

The Littelfuse RXEF005 Resettable Fuse is part of the PolySwitch RXE series engineered for circuit protection in various electronic and electrical applications. Rated at 0.05 A hold current and supporting voltage up to 60 V, this radial lead fuse resets automatically after clearing an overcurrent fault condition, making it maintenance free and highly reliable.

This device features a fast response time to trip within 5 seconds once excess current is detected, safeguarding circuits from damage caused by short circuits or overloads. Its compact size, measuring 8 mm in length, 8.3 mm in height, and 3 mm in width, allows integration into densely packed printed circuit boards and electronic assemblies.

The fuse operates over a wide temperature range from -40°C up to 60°C, ensuring consistent performance in demanding industrial, telecommunications, and computing environments. It dissipates power up to 0.22 W during operation, emphasizing efficient thermal management needed for continuous protection.

Littelfuse RXEF005 meets stringent international safety and quality certifications including UL, CSA, TUV, CQC, and RoHS directives, confirming its suitability for global industrial and commercial use. The radial lead format facilitates easy insertion and soldering on PCBs without requiring a fuse holder, saving space and reducing assembly complexity.

This resettable fuse is widely used to protect sensitive equipment like printers, satellite video receivers, industrial control systems, transformers, computer motherboards, modems, USB hubs, gaming consoles, phones, fax machines, and analog/digital line cards. Its rapid switching from low resistance to high resistance state upon fault conditions prevents damage and enhances operational safety.

Provides automatic resettable overcurrent protection. Compact radial lead design suitable for PCB mounting. Wide operational temperature range from -40°C to 60°C. Certified to meet UL, CSA, TUV, CQC, and RoHS standards. Fast trip time ensures timely circuit protection.

Applications include security systems, power supplies, telecom, and consumer electronics. Maintenance free operation eliminates need for fuse replacement. Small footprint reduces space requirements in electronic designs.

Power dissipation rating supports efficient thermal performance. Explore more innovative Resettable Fuses and components in the Electronics & Electricals category on EnvMart to enhance your circuit protection solutions.