View tip31abc datasheet:

TIP31 Series(TIP31/31A/31B/31C) Medium Power Linear Switching Applications • Complementary to TIP32/32A/32B/32C TO-220 1 1.Base 2.Collector 3.Emitter NPN Epitaxial Silicon Transistor Absolute Maximum Ratings TC=25°C unless otherwise noted Symbol Parameter Value Units VCBO Collector-Base Voltage : TIP31 40 V : TIP31A 60 V : TIP31B 80 V : TIP31C 100 V VCEO Collector-Emitter Voltage : TIP31 40 V : TIP31A 60 V : TIP31B 80 V : TIP31C 100 V VEBO Emitter-Base Voltage 5 V IC Collector Current (DC) 3 A ICP Collector Current (Pulse) 5 A IB Base Current 1 A PC Collector Dissipation (TC=25°C) 40 W PC Collector Dissipation (Ta=25°C) 2 W TJ Junction Temperature 150 °C TSTG Storage Temperature - 65 ~ 150 °C Electrical Characteristics TC=25°C unless otherwise noted