BC303-4 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -85 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -0.5 A
• Collector Dissipation: 0.85 W
• DC Current Gain (h_fe): 40 to 80
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -65 to +175 °C
• Package: TO-39

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the BC303-4 is the BC301-4.You can replace the BC303-4 with the 2N2102, 2N2102A, 2N2904A, 2N4036, 2N4235, 2N4236, 2N4404, 2N4406, 2N4928, 2N5151, 2N5322, 2N5323, 2N5333, 2N5679, 2N5680, 2N6190, 2N6192, 2SA510, 2SA510-R, 2SA512, 2SA512-R, BC161, BC161-6, BC303 or BC461.