2SB947A-P Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -40 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -10 A
• Collector Dissipation: 35 W
• DC Current Gain (h_fe): 130 to 260
• Transition Frequency, min: 150 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 2SB947A-P transistor can have a current gain of 130 to 260. The gain of the 2SB947A will be in the range from 60 to 260, for the 2SB947A-Q it will be in the range from 90 to 180, for the 2SB947A-R it will be in the range from 60 to 120.Sometimes the "2S" prefix is not marked on the package - the 2SB947A-P might only be marked "B947A-P".The 2STF2550 (SOT-89) and 2STN2550 (SOT-223) is the SMD version of the 2SB947A-P transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SB947A-P with the 2SA1291, 2SA1471, 2SA1743, 2SA1744, 2SB1136, 2SB826, 2SB948A, 2SB948A-P, BD546, BD546A, BD546B, BD808, BD810, BDT82, BDT82F, BDT84, BDT84F, D45H11, D45H11FP or D45H8.