The TIP31C is an NPN epitaxial silicon transistor intended for medium power linear switching applications. It is complementary to the TIP32 series and is supplied in a TO-220 3-lead package. The TIP31C has a 100 V collector-base voltage rating, a 100 V collector-emitter voltage rating, and a 5 V emitter-base voltage rating. It is rated for 3 A DC collector current, 5 A pulsed collector current, and 1 A base current. Collector dissipation is rated at 2 W at TA = 25°C and 40 W at TC = 25°C. The maximum junction temperature is 150°C, and the storage temperature range is -65°C to 150°C.