2N3709 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 30 V
• Collector-Base Voltage, max: 30 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 0.2 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 45 to 165
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2N3709 is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the 2N3709 is the 2N4060.You can replace the 2N3709 with the 2N3708, 2SC2000, BC635, KSC1008C, KSC2331 or KSC815C.