MJ2840 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 4 V
• Collector Current − Continuous, max: 10 A
• Collector Dissipation: 150 W
• DC Current Gain (h_fe): 20 to 100
• 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 PNP transistor to the MJ2840 is the MJ2940.You can replace the MJ2840 with the 2N5039, 2N5671, 2N5672, 2N5877, 2N5878, 2N5881, 2N5882, 2N5885, 2N5885G, 2N5886, 2N5886G, 2N6471, 2N6472, KD502, KD503, MJ14000, MJ14000G, MJ14002, MJ14002G or MJ2841.