2N3251A Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.2 A
• Collector Dissipation: 0.36 W
• DC Current Gain (h_fe): 100 to 300
• 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 2N3251A with the 2N2905A or 2N4405.