2SA1248-S Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -160 V
• Collector-Base Voltage, max: -180 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -0.7 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 140 to 280
• Transition Frequency, min: 120 MHz
• 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 2SA1248-S transistor can have a current gain of 140 to 280. The gain of the 2SA1248 will be in the range from 100 to 400, for the 2SA1248-R it will be in the range from 100 to 200, for the 2SA1248-T it will be in the range from 200 to 400.Sometimes the "2S" prefix is not marked on the package - the 2SA1248-S might only be marked "A1248-S".The complementary NPN transistor to the 2SA1248-S is the 2SC3116-S.The KST93 (SOT-23) is the SMD version of the 2SA1248-S transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA1248-S with the 2SA1220A, 2SA1249, 2SA1249-S, 2SA1507, 2SA1507-S, 2SA795A, KSA1220A or TTA004b.