TRANSISTOR, NPN TO-3; Transistor type:Power General Purpose; Voltage, Vceo:125V; Current, Ic continuous a max:50A; hfe, min:10; Case style:TO-3 (TO-204AA); Current, Ic hFE:50A; Current, Ic max:50A; Pins, No. of:2; Power, Ptot:250W; Temperature, full power rating:25°C; Transistor polarity:NPN; Transistors, No. of:1