TIP31A Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 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 TIP31A transistor is marked as "TIP31A".The complementary PNP transistor to the TIP31A is the TIP32A.You can replace the TIP31A with the BDT31A, BDT31B, BDT31C, MJF31C, MJF31CG, TIP31AG, TIP31B, TIP31BG, TIP31C, TIP31CF, TIP31CG, TIP31D or TIP31E.The TIP31AG transistor is the lead-free version of the TIP31A.