2N6477 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 120 V
• Collector-Base Voltage, max: 140 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 2.5 A
• Collector Dissipation: 50 W
• DC Current Gain (h_fe): 25 to 150
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.You can replace the 2N6477 with the 2N6474, 2N6478, 2SD772, 2SD772A, 2SD792, 2SD792A, NTE291, TIP41D, TIP41E, TIP41F, TIP42D, TIP42E or TIP42F.