2SA1275-R Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -160 V
• Collector-Base Voltage, max: -160 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 0.9 W
• DC Current Gain (h_fe): 60 to 120
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92MOD

Here is an image showing the pin diagram of this transistor.The 2SA1275-R transistor can have a current gain of 60 to 120. The gain of the 2SA1275 will be in the range from 60 to 320, for the 2SA1275-O it will be in the range from 100 to 200, for the 2SA1275-Y it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SA1275-R might only be marked "A1275-R".The complementary NPN transistor to the 2SA1275-R is the 2SC3228-R.The KST93 (SOT-23) is the SMD version of the 2SA1275-R transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.The KTA1275R is the TO-92 version of the 2SA1275-R.You can replace the 2SA1275-R with the 2SA1013, 2SA1013R, KSA1013, KSA1013R, KTA1275 or KTA1275R.