2N3053 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 80 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.7 A
• Collector Dissipation: 5 W
• DC Current Gain (h_fe): 50 to 250
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -65 to +200 °C
• Package: TO-39

Here is an image showing the pin diagram of this transistor.You can replace the 2N3053 with the 2N3053A, 2N5321, BC140, BC141, BC440 or BC441.