The TIP31C is a high-power NPN bipolar junction transistor (BJT) in a TO-220 package, designed for general-purpose amplification and switching applications up to 100V and 3A.

Type: NPN Bipolar Power Transistor Package: TO-220 Collector-Emitter Voltage (Vceo): 100V Collector-Base Voltage (Vcbo): 100V Emitter-Base Voltage (Vebo): 5V Continuous Collector Current (Ic): 3A Power Dissipation (Pd): 40W DC Current Gain (hFE): 10 to 50 Collector-Emitter Saturation Voltage: 1.2V (max) Operating Junction Temperature: -65°C to +150°C Pins: 3 (Base, Collector, Emitter)

