multicomp PRO Trans, Npn, 400V, 15A, 200Deg C, 175W; Transistor Polarity Multicomp Pro BUX48

The BUX48 is an NPN silicon transistor in a TO-3 package, designed for high-power switching applications such as switch mode power supplies and flyback converters. It has a collector-emitter voltage rating of 400 V, a continuous collector current of 15 A, and a maximum power dissipation of 175 W at 25°C case temperature. The maximum junction temperature is 200°C, and the thermal resistance from junction to case is 1°C/W. The device features fast switching speeds with a turn-on time of 1 µs, storage time of 3 µs, and fall time of 0.8 µs under specified conditions. The TO-3 package has a height of 38.5 to 39.3 mm and a base diameter of 25 to 26 mm.