TIP51 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 250 V
• Collector-Base Voltage, max: 350 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 100 W
• DC Current Gain (h_fe): 30 to 150
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-247

Here is an image showing the pin diagram of this transistor.You can replace the TIP51 with the 2SC2555, 2SC2625, 2SC3306, 2SC3320, 2SC3796, 2SC3796A, 2SC3797, 2SD1313, MJH16002, MJH16004, MJH16006, MJH16008, TIP52, TIP53 or TIP54.