Littelfuse 2.5 A Resettable Fuse 30V DC Radial Lead PolySwitch RUEF Series RUEF250

Littelfuse RUEF250 2.5 A Resettable Fuse is a PolySwitch™ RUEF series radial lead fuse designed to protect electrical and electronic circuits from excessive current. Rated for 30V DC and holding a current of 2.5 A, it rapidly switches from a low resistance state to a high resistance state upon electrical overload or short circuit, then automatically resets when power is removed, ensuring maintenance-free and reliable circuit protection.

The compact device measures 11.4 mm in length, 18.3 mm in height, and 3 mm in width, making it ideal for tight PCB applications without the need for a fuse holder. Its trip current is 5 A with a time-to-trip of 10.3 seconds, suitable for sensitive circuit protection.

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

Automatically resets itself thousands of times, ensuring long service life. Maintenance-free operation eliminates fuse replacement and machine downtime. Small footprint optimizes PCB space and design flexibility. Radial lead orientation simplifies board mounting and soldering.

Rated for 30V DC voltage and 2.5A hold current with 5A trip current for reliable protection. Certified to multiple international standards including UL, TUV, RoHS, CQC, and CSA. Wide operating temperature range from -40°C to 60°C for varied environmental conditions.

Power dissipation rated at 1.2 W.

This resettable fuse is essential for industrial, commercial, and laboratory electronic equipment, offering robust overcurrent protection while reducing maintenance costs. It ensures circuit safety and reliability in manufacturing, automotive systems, medical devices, and telecommunications.

Explore more Littelfuse Resettable Fuses and circuit protection devices at EnvMart for comprehensive solutions.