BK/PCC-2-1/2-R is a subminiature radial-leaded fast-acting fuse designed for DC supplementary overcurrent protection in high-voltage applications. This fuse features a 0.5A ampere rating with short 0.100" (2.54 mm) lead length and is rated for 250V AC and 450V DC operation, with a maximum DC interrupting capacity of 5900A. The device meets UL Recognized (E19180) and CSA (42731) standards and is RoHS compliant, offering board-washable construction suitable for through-hole PCB mounting. With AC time-current characteristics of 4 hours minimum at 100% rated current and 10 seconds maximum at 200% rated current, this fuse provides reliable protection for individual components and internal circuits in electronic equipment, particularly in high-voltage DC applications where space constraints and fast-acting response are critical.