Littlefuse TR5 372 Series Time Delay PCB Fuse, 250mA 250V, Radial Leaded, 1g

The Littlefuse 372 Series fuse is a TR5, sub-miniature time-lag radial leaded fuse, designed for reliable circuit protection in a compact format. It can be soldered directly onto a printed circuit board (PCB) or used with a compatible two-pin socket, offering flexibility in installation. Manufactured in accordance with IEC 60127-3 standards, this 250mA, 250VAC rated fuse is built for dependable performance.

A key feature of this series is its time-delay (slow-blow) characteristic, which allows it to withstand temporary inrush currents without unnecessary blowing, making it ideal for protecting sensitive electronic components. The design prioritises space efficiency, with reduced PCB footprint requirements to save valuable real estate on modern circuit boards.

Quality and Safety Assurance

These fuses carry major international safety approvals, including UL, VDE, PSE/JET, and CCC, ensuring compliance with rigorous global standards. The shock-safe and vibration-resistant casing enhances durability in demanding environments, from industrial machinery to consumer electronics. With a breaking capacity of 35A AC, it can safely interrupt high fault currents.

Engineered for a wide operating temperature range of -40°C to +85°C, this component is suitable for applications exposed to harsh conditions. Its low internal resistance ensures minimal voltage drop and power loss during normal operation, contributing to overall system efficiency.

Typical Applications

The 372 Series is commonly used across various sectors, including industrial controls, power supplies, telecommunications equipment, and safety-critical systems where consistent and fail-safe protection is paramount.