KT8174B Maximum allowable direct collector-emitter voltage, V 600 The maximum permissible DC voltage of the collector-emitter, V 400 The maximum permissible constant voltage is the emitter-base, V 7 Maximum permissible constant collector current, A 40 Maximum allowable impulse current of the collector, A 63 Maximum permissible constant current of the base, A 1 Maximum permissible current base current, A 2 The maximum permissible constant dissipated power of the collector, W 160 Maximum allowable transition temperature 150