TIP31F Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 160 V
• Collector-Base Voltage, max: 200 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 10 to 50
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the TIP31F is the TIP32F.You can replace the TIP31F with the 2N6497, 2N6498, KSE13004, KSE13006 or MJE13006.