MJE3439G Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 350 V
• Collector-Base Voltage, max: 450 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.3 A
• Collector Dissipation: 15 W
• DC Current Gain (h_fe): 15 to 200
• Transition Frequency, min: 15 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-126
• The MJE3439G is the lead-free version of the MJE3439 transistor

Here is an image showing the pin diagram of this transistor.You can replace the MJE3439G with the 2SC2899 or MJE3439.