Littelfuse 1.85 A Resettable Fuse 30V dc RUEF185

Littelfuse RUEF185 1.85 A Resettable Fuse rated for 30V dc provides reliable overcurrent protection with automatic reset functionality for permanent circuit safeguarding. Its compact radial lead form factor (10.2 mm length, 15.7 mm height, 3 mm width) enables easy installation on PCB wire-ended applications.

The polyswitch technology ensures rapid transition from low resistance state to high resistance when an electrical overload or short circuit occurs, preventing circuit damage. Once the fault is cleared and power is removed, it resets automatically to its low resistance conductive state, making it maintenance free and suitable for repeated use thousands of times.

Designed to operate over a broad temperature range from -40°C to 60°C, this fuse maintains high accuracy with a trip current of 3.7 A and hold current of 1.85 A, ensuring targeted protection without nuisance interruptions. Its low minimum resistance (0.03 Ω) minimizes energy loss while power dissipation is rated at 1 W.

It carries multiple approvals including UL, CSA, CQC, RoHS, and TUV, affirming its quality and safe usage in demanding industrial and commercial environments.

This resettable fuse is widely used across industry sectors including security systems, power supplies, automotive electronics, medical instrumentation, computers, audiovisual equipment, and telecommunications devices, providing reliable circuit current protection without the need for replacement after faults.

Provides protection against excessive currents in electrical and electronic circuits. Features automatic reset capability thousands of times without replacement. Compact radial lead orientation with dimensions 10.2 mm length, 15.7 mm height, and 3 mm width.

Operates over temperature range from -40°C to 60°C for versatile applications. Trip current rating of 3.7 A with hold current of 1.85 A ensures precise circuit safeguarding. Offers low resistance of 0.03 Ω minimum and maximum resistance of 90 mΩ for minimal power loss.

Power dissipation rated at 1 W suitable for various power supply systems. UL, CSA, CQC, RoHS, and TUV approvals certify compliance with international standards. Ideal for use in automotive, medical equipment, security systems, instrumentation, and telecommunications.

Maintenance free design eliminates the need for fuseholder and allows for rapid response to faults. Explore our extensive range of Resettable Fuses and electrical components to secure and enhance your industrial and commercial electrical systems at EnvMart.