2SA2040 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -8 A
• Collector Dissipation: 15 W
• DC Current Gain (h_fe): 200 to 560
• Transition Frequency, min: 290 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-251

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SA2040 might only be marked "A2040".The complementary NPN transistor to the 2SA2040 is the 2SC5707.You can replace the 2SA2040 with the 2SA2169.