MJ15021 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -250 V
• Collector-Base Voltage, max: -250 V
• Emitter-Base Voltage, max: -7 V
• Collector Current − Continuous, max: -4 A
• Collector Dissipation: 150 W
• DC Current Gain (h_fe): 30
• Transition Frequency, min: 20 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 MJ15021 is the MJ15020.You can replace the MJ15021 with the MJ11021 or MJ11021G.