2SA1290-R Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -80 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -7 A
• Collector Dissipation: 35 W
• DC Current Gain (h_fe): 100 to 200
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The 2SA1290-R transistor can have a current gain of 100 to 200. The gain of the 2SA1290 will be in the range from 70 to 280, for the 2SA1290-Q it will be in the range from 70 to 140, for the 2SA1290-S it will be in the range from 140 to 280.Sometimes the "2S" prefix is not marked on the package - the 2SA1290-R might only be marked "A1290-R".The complementary NPN transistor to the 2SA1290-R is the 2SC3254-R.You can replace the 2SA1290-R with the 2SA1010, 2SA1010K, 2SA1077, 2SA1291, 2SA1291-R, 2SA1329, 2SA1452, 2SA1452A, 2SA1470, 2SA1470-R, 2SA1471, 2SA1471-R, 2SA1742, 2SA1742-M, 2SA1743, 2SA1743-M, 2SA1744, 2SA1744-M, 2SB1018, 2SB1018A, 2SB1097, 2SB1097-K, 2SB707, 2SB707-Y, 2SB708, 2SB708-Y, 2SB870, 2SB946, 2SB992, BD204, BD304, BD536, BD538, BD544A, BD544B, BD544C, BD546A, BD546B, BD546C, BD798, BD800, BD802, BD808, BD810, BDT82, BDT82F, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDT92, BDT92F, BDT94, BDT94F, BDT96, BDT96F, BDX78, D45H11, D45H11FP, D45H8, KSA1010, KSA1010Y, KSB1097, KSB1097-Y, KSB707, KSB707-Y, KSB708, KSB708-Y, MJE15029 or MJE15029G.