2N3442 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 140 V
• Collector-Base Voltage, max: 160 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 10 A
• Collector Dissipation: 117 W
• DC Current Gain (h_fe): 20 to 70
• 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 2N3442 with the 2N3442G, 2N5038, 2N5038G, BUY69C, BUY70C, MJ15011 or MJ15011G.The 2N3442G transistor is the lead-free version of the 2N3442.