Fast-acting, glass tube 5 mm x 20 mm ferrule fuse designed to UL 248-14 for overcurrent protection of electronic circuits. Install into a Bussmann Series fuse holder, block or fuse clip. Also available with axial leads for thru-hole installation Eaton's GMA Fast-acting glass tube fuses (5 mm x 20 mm) Designed to meet UL 248-14 standards, these fuses provide dependable overcurrent protection for electronic circuits. Constructed with a glass body, they are RoHS compliant and available in two formats: Cartridge fuse: Compatible with Bussmann Series fuse holders, blocks, or clips. Axial leads: Ideal for thru-hole PCB installation.