2N3791 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -7 V
• Collector Current − Continuous, max: -10 A
• Collector Dissipation: 150 W
• DC Current Gain (h_fe): 50 to 180
• Transition Frequency, min: 4 MHz
• Operating and Storage Junction Temperature Range: -65 to +200 °C
• Package: TO-3

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the 2N3791 is the 2N3715.You can replace the 2N3791 with the 2N3792, 2SA1041, 2SA1042, 2SA1043, 2SA1044, 2SA746, 2SA747, 2SA753, 2SA907, BD316 or BD318.