2SA1451-O 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 140
• 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 2SA1451-O transistor can have a current gain of 70 to 140. The gain of the 2SA1451 will be in the range from 70 to 240, for the 2SA1451-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SA1451-O might only be marked "A1451-O".The complementary NPN transistor to the 2SA1451-O is the 2SC3709-O.You can replace the 2SA1451-O with the 2N6490, 2N6490G, 2N6491, 2N6491G, 2SA1328, 2SA1328-O, 2SA1329, 2SA1329-O, 2SA1451A, 2SA1451A-O, 2SA1452, 2SA1452-O, 2SA1452A, 2SA1452A-O, 2SB1136, 2SB1136-Q, 2SB826, 2SB826-Q, BD546A, BD546B, BD546C, BD708, BD710, BD712, BD744A, BD744B, BD744C, BD908, BD910, BD912, BDT82, BDT82F, BDT84, BDT84F, BDT86 or BDT86F.