2SA1249-R 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: -1.5 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 100 to 200
• 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 2SA1249-R transistor can have a current gain of 100 to 200. The gain of the 2SA1249 will be in the range from 100 to 400, for the 2SA1249-S it will be in the range from 140 to 280, for the 2SA1249-T it will be in the range from 200 to 400.Sometimes the "2S" prefix is not marked on the package - the 2SA1249-R might only be marked "A1249-R".The complementary NPN transistor to the 2SA1249-R is the 2SC3117-R.You can replace the 2SA1249-R with the 2SA1507, 2SA1507-R, 2SB649A, 2SB649A-C or KTA1700.