BDW51C Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 100 V
• Collector-Base Voltage, max: 100 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 15 A
• Collector Dissipation: 125 W
• DC Current Gain (h_fe): 750 to 150
• Transition Frequency, min: 3 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 BDW51C is the BDW52C.You can replace the BDW51C with the 2N6284, 2N6284G, 2SC1584, 2SC1585, 2SC1586, 2SC2431, 2SC2433, 2SD753, 2SD753-C, BD317, MJ11018, MJ11020, MJ15001, MJ15001G, MJ15003 or MJ15003G.