The BK1/GMC-1-R is a medium time-delay glass tube fuse intended for circuit protection. It is rated for 1A and 250Vac, providing reliable performance in a variety of electronic applications. This fuse features an interrupting rating of 35A at 250Vac and 10,000A at 125Vac. Key electrical characteristics include a typical DC cold resistance of 0.156 Ω, a typical pre-arc I²t of 1.8 A²s, and a maximum voltage drop of 250 mV. Housed in a 5 mm x 20 mm glass tube with nickel-plated brass endcaps, it is designed to UL/CSA 248-14 standards, making it suitable for consumer electronics and industrial equipment.