2SB946-P Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -130 V
• Emitter-Base Voltage, max: -7 V
• Collector Current − Continuous, max: -7 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 130 to 260
• Transition Frequency, min: 30 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 2SB946-P transistor can have a current gain of 130 to 260. The gain of the 2SB946 will be in the range from 60 to 260, for the 2SB946-Q it will be in the range from 90 to 180, for the 2SB946-R it will be in the range from 60 to 120.Sometimes the "2S" prefix is not marked on the package - the 2SB946-P might only be marked "B946-P".The complementary NPN transistor to the 2SB946-P is the 2SD1271-P.You can replace the 2SB946-P with the 2SB870, 2SB870-P, BD538, BD544B, BD544C, BD546B, BD546C, BD800, BD802, BD810, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDX78, D45H11, D45H11FP, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF15031 or MJF15031G.