2SA1539-E Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -120 V
• Collector-Base Voltage, max: -120 V
• Emitter-Base Voltage, max: -3 V
• Collector Current − Continuous, max: -0.3 A
• Collector Dissipation: 8 W
• DC Current Gain (h_fe): 100 to 200
• Transition Frequency, min: 400 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126F

Here is an image showing the pin diagram of this transistor.The 2SA1539-E transistor can have a current gain of 100 to 200. The gain of the 2SA1539 will be in the range from 40 to 320, for the 2SA1539-C it will be in the range from 40 to 80, for the 2SA1539-D it will be in the range from 60 to 120, for the 2SA1539-F it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SA1539-E might only be marked "A1539-E".The complementary NPN transistor to the 2SA1539-E is the 2SC3954-E.You can replace the 2SA1539-E with the 2SA1021, 2SA1021-O, 2SA1184, 2SA1220, 2SA1220-Q, 2SA1220A, 2SA1220A-Q, 2SA1248, 2SA1248-R, 2SA1249, 2SA1249-R, 2SA1358, 2SA1405, 2SA1405-E, 2SA1408, 2SA1408-O, 2SA1507, 2SA1507-R, 2SA794A, 2SA795, 2SA795A, 2SB631K, 2SB631K-E, 2SB649, 2SB649-C, 2SB649A, 2SB649A-C, KSA1220, KSA1220-O, KSA1220A, KSA1220A-O, KTA1700, KTA1704 or KTA1704-Y.