2SA940 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -150 V
• Collector-Base Voltage, max: -150 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1.5 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 40 to 140
• Transition Frequency, min: 4 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SA940 might only be marked "A940".The complementary NPN transistor to the 2SA940 is the 2SC2073.You can replace the 2SA940 with the 2SA1304, 2SA740, 2SA940A, 2SB546, 2SB546A, 2SB547, 2SB630, KSA1304, KSA940, KSB546, MJE15031, MJE15031G, MJE5850, MJE5850G, MJF15031 or MJF15031G.