BC394 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 180 V
• Collector-Base Voltage, max: 180 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 0.4 W
• DC Current Gain (h_fe): 30
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -55 to +200 °C
• Package: TO-18

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the BC394 is the BC393.You can replace the BC394 with the 2N6430 or 2N6431.