2N3798A Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -90 V
• Collector-Base Voltage, max: -90 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.05 A
• Collector Dissipation: 0.36 W
• DC Current Gain (h_fe): 150 to 450
• Transition Frequency, min: 80 MHz
• Noise Figure, max: 4 dB
• Operating and Storage Junction Temperature Range: -65 to +200 °C
• Package: TO-18

Here is an image showing the pin diagram of this transistor.You can replace the 2N3798A with the 2N3497 or BC393.