2N4347 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 120 V
• Collector-Base Voltage, max: 140 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 5 A
• Collector Dissipation: 100 W
• DC Current Gain (h_fe): 15 to 60
• 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 2N4347 with the 2N3773, 2N3773G, 2N5631, 2N5634, 2N5760, BUY69C, BUY70C, MJ15022 or MJ15022G.