SR-5-5A-BK is a time lag radial lead micro fuse from the ETF series, designed for circuit overcurrent protection. This fuse features a 5A current rating with 250V AC voltage rating, a typical cold resistance of 0.01 ohm, and a maximum volt-drop of 0.077V at 100% rated current. The fuse body is constructed with UL 94-V0 rated thermoplastic material and tin-lead plated copper alloy leads, with an operating temperature range of -55°C to +125°C. It offers melting I²T values of 145 A²sec (<10 ms) and 175 A²sec (@ 10 In), with a maximum power dissipation of 1.17W. The BK packaging code indicates bulk packaging with 100 units per bag in short lead configuration, suitable for electronic equipment protection applications.