2SA1124-S 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: -0.05 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 185 to 330
• Transition Frequency, min: 200 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 2SA1124-S transistor can have a current gain of 185 to 330. The gain of the 2SA1124 will be in the range from 130 to 450, for the 2SA1124-R it will be in the range from 130 to 220, for the 2SA1124-T it will be in the range from 260 to 450.Sometimes the "2S" prefix is not marked on the package - the 2SA1124-S might only be marked "A1124-S".The complementary NPN transistor to the 2SA1124-S is the 2SC2632-S.You can replace the 2SA1124-S with the 2SA1123, 2SA1123-S, 2SA1207, 2SA1208, 2SA1285A, 2SA1319, 2SA1376, 2SA1376A, BF421, BF423, KSA709C or KTA1279.