MJ2901 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -40 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -7 V
• Collector Current − Continuous, max: -15 A
• Collector Dissipation: 115 W
• DC Current Gain (h_fe): 15 to 60
• Transition Frequency, min: 1 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 MJ2901 is the MJ2801.You can replace the MJ2901 with the 2N4398, 2N4399, 2N5683, 2N5683G, 2N5684, 2N5684G, 2N5745, MJ14001, MJ14001G, MJ14003 or MJ14003G.