2N5631 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 140 V
• Collector-Base Voltage, max: 140 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 16 A
• Collector Dissipation: 200 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 PNP transistor to the 2N5631 is the 2N6031.You can replace the 2N5631 with the 2N3773, 2N3773G, MJ15022, MJ15022G, MJ15024 or MJ15024G.