2SA1312 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -120 V
• Collector-Base Voltage, max: -120 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.1 A
• Collector Dissipation: 0.15 W
• DC Current Gain (h_fe): 200 to 700
• Transition Frequency, min: 100 MHz
• Noise Figure, max: 0.5 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23

Here is an image showing the pin diagram of this transistor.The 2SA1312 transistor can have a current gain of 200 to 700. The gain of the 2SA1312-BL will be in the range from 350 to 700, for the 2SA1312-GR it will be in the range from 200 to 400.Sometimes the "2S" prefix is not marked on the package - the 2SA1312 might only be marked "A1312".The complementary NPN transistor to the 2SA1312 is the 2SC3324.You can replace the 2SA1312 with the 2SA1163, KST93 or PBHV9115T.