2N5039 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 120 V
• Collector-Base Voltage, max: 120 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 20 A
• Collector Dissipation: 140 W
• DC Current Gain (h_fe): 20 to 100
• Operating and Storage Junction Temperature Range: -65 to +200 °C
• Package: TO-3

Here is an image showing the pin diagram of this transistor.You can replace the 2N5039 with the 2N5038, 2N5038G or 2N5672.