BK/MDL-3/8-R is a time-delay glass tube fuse from the MDL Series designed for circuit protection in applications requiring inrush current tolerance. It features a 3/8A (0.375A) rated current with a 250Vac voltage rating and glass tube construction with nickel-plated brass endcaps. The fuse has an AC interrupting rating of 35A at 250Vac and 10000A at 125Vac, with a typical DC cold resistance of 1.567O and typical melting I²t of 0.982 A²sec. With physical dimensions of 1/4 x 1-1/4 inches (6.4 x 31.7mm), this UL Listed fuse meets standard 248-14 and is RoHS compliant. Common applications include equipment requiring time-delay protection against temporary overloads while providing reliable overcurrent protection.