2N3054A Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 55 V
• Collector-Base Voltage, max: 90 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 4 A
• Collector Dissipation: 75 W
• DC Current Gain (h_fe): 25 to 150
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -65 to +200 °C
• Package: TO-66

Here is an image showing the pin diagram of this transistor.You can replace the 2N3054A with the 2N3054 or 2N6465.