Littelfuse 0251.500Nrt1L
FUSE, AXIAL, 0.5A, VERY FAST ACTING; Fuse Current:500mA; Voltage Rating VAC:125V; Product Range:PICO II 251 Series; Voltage Rating V DC:125V; Blow Characteristic:Very Fast Acting; Fuse Case Style:Axial Leaded; Breaking Capacity Current AC:50A; Breaking Capacity Current DC:300A; SVHC:No SVHC (12-Jan-2017)