PCH-1-R is a subminiature radial-leaded fast-acting fuse designed for DC supplementary overcurrent protection in high-voltage applications. It features a 0.125" lead length, AC voltage rating of 250V, and DC voltage rating of 450V with a maximum DC interrupting capacity of 5900A. The fuse is board washable, RoHS compliant, and meets UL Recognized (E19180) and CSA (42731) standards. It is ideal for protecting individual components or internal circuits in equipment, with an operating current of 80% or less of rated current recommended for optimal performance and reliability.