2SA1451A Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -12 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 70 to 240
• Transition Frequency, min: 70 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.The 2SA1451A transistor can have a current gain of 70 to 240. The gain of the 2SA1451A-O will be in the range from 70 to 140, for the 2SA1451A-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SA1451A might only be marked "A1451A".The complementary NPN transistor to the 2SA1451A is the 2SC3709A.You can replace the 2SA1451A with the 2SA1328, 2SA1329, 2SA1451, 2SA1452, 2SA1452A, 2SB1136, 2SB826, BD546A, BD546B, BD546C, BDT82, BDT82F, BDT84, BDT84F, BDT86 or BDT86F.