SR-5H-1.25A-BK is a 250/300V subminiature radial leaded time-delay fuse designed for primary and secondary circuit protection applications. It features a 1.25A current rating with 100A interrupting capacity at rated voltage, a typical DC cold resistance of 57 mO, and a typical voltage drop of 87 mV. The fuse is designed to IEC60127-3 standards with a plastic cap and base rated UL 94V0 flammability, and operates over a temperature range of -40°C to +125°C with proper derating. This compact rectangular-leaded design utilizes minimal board space and is packaged in a polybag with 200 parts and lead length of 4.3 ±0.3 mm. Common applications include power supplies, notebooks, appliances, lighting ballasts, LED/LCD displays, and battery chargers.