Littelfuse 0.9 A Radial Resettable Fuse 30V DC RUEF090

Littelfuse RUEF090 is a 0.9 A radial resettable fuse rated for 30V DC, providing automated circuit protection by switching from low to high resistance on fault conditions. This fuse in the PolySwitch™ RUEF series is designed for PCB wire-ended mounting with compact size: 7.4 mm length, 12.2 mm height, and 3 mm width.

It features a trip current of 1.8 A, with a hold current rating of 0.9 A, and responds within 5.9 seconds to prevent damage from overloads or short circuits. Operating temperature range spans from -40°C to 60°C, enabling reliable performance in a variety of industrial and commercial environments.

The fuse automatically resets thousands of times after fault correction, requiring no maintenance or fuse holder, which reduces downtime and service costs. Its low minimum resistance of 0.07 Ω and power dissipation of 0.6 W deliver effective energy handling while minimizing losses.

Certified to international standards including UL, CSA, CQC, RoHS, and TUV, this component meets rigorous safety and environmental criteria.

Commonly utilized in electronic circuits for security systems, power supplies, transformers, automotive and medical equipment, instrumentation, computer peripherals, audiovisual, and telecommunications devices.

The fuse resets itself automatically thousands of times, eliminating replacement costs. Maintenance-free operation with no fuse holder necessary simplifies installation. Compact form factor suits tight spaces in industrial circuit boards.

Rapid switching from low to high resistance protects circuits promptly. Wide temperature operating range ensures durability under varied conditions. Approvals from leading safety and compliance organizations guarantee quality.

Ideal for use in security, power, automotive, medical, and computing applications. Explore more Resettable Fuses and electronic circuit protection solutions in EnvMart's Electronics & Electricals category for reliable industrial-grade components.