2SA1156M Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -400 V
• Collector-Base Voltage, max: -400 V
• Emitter-Base Voltage, max: -7 V
• Collector Current − Continuous, max: -0.5 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 40 to 80
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The 2SA1156M transistor can have a current gain of 40 to 80. The gain of the 2SA1156 will be in the range from 30 to 200, for the 2SA1156K it will be in the range from 100 to 200, for the 2SA1156L it will be in the range from 60 to 120, for the 2SA1156N it will be in the range from 30 to 60.Sometimes the "2S" prefix is not marked on the package - the 2SA1156M might only be marked "A1156M".The complementary NPN transistor to the 2SA1156M is the 2SC2752K.You can replace the 2SA1156M with the KSA1156 or KSA1156R.