Littelfuse Non-Resettable Fast Acting Fuse 500mA, 125V AC/DC, Ceramic Body, 251 Series 0251.500MRT1L

Littelfuse 0251.500MRT1L non-resettable fast acting fuse delivers precise overcurrent protection with a 500mA current rating and supports 125 volts AC and DC operations. Constructed with a ceramic body, this fuse provides enhanced resistance to heat and mechanical stress, ensuring durability in demanding environments.

Part of the Littelfuse 251 Series, this fuse is characterized by its very fast-acting (FF) attributes, making it suitable for sensitive electronics that require rapid response to fault conditions. The fuse's small subminiature size allows compact installations without sacrificing protection quality.

With a breaking capacity of 300 amps, the fuse can safely interrupt high fault currents, protecting circuit components and reducing risk of damage. It operates reliably across a temperature range from -55°C to 125°C, adapting to varied industrial and commercial settings. The fuse includes leads of 52.4mm length, 0.64mm lead diameter, and overall 0.81mm diameter, facilitating straightforward integration into modern circuit boards and assembly lines.

This fuse meets UL certification standards, confirming its compliance with recognized safety and performance requirements. Typical applications include circuit protection in LCD monitors, audio/video systems, lighting installations, medical devices, and other sophisticated electronics where rapid fuse action is critical.

The ceramic body design enhances thermal stability and reduces potential hazards from fuse failures. In packaging, the items are supplied on reels to support automated machinery insertion, enhancing production efficiency.

This fuse features a ceramic body for enhanced durability and safety. It belongs to the Littelfuse 251 Series, known for very fast-acting characteristics. The fuse offers a breaking capacity of 300A ensuring reliable interruption.

Operating temperature range spans from -55°C minimum to 125°C maximum. Lead length is 52.4mm with a diameter of 0.81mm and lead diameter of 0.64mm. Complies with UL standards assuring quality and performance conformity. Ideal for use in LCD monitors, audiovisual systems, lighting, and medical equipment protection.

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