2SB944-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: -4 A
• Collector Dissipation: 35 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 2SB944-P transistor can have a current gain of 130 to 260. The gain of the 2SB944 will be in the range from 90 to 260, for the 2SB944-Q it will be in the range from 90 to 180.Sometimes the "2S" prefix is not marked on the package - the 2SB944-P might only be marked "B944-P".The complementary NPN transistor to the 2SB944-P is the 2SD1269-P.You can replace the 2SB944-P with the 2SA1488A, 2SA1634, 2SA1635, 2SA771, 2SB633, 2SB870, 2SB870-P, 2SB945, 2SB945-P, 2SB946, 2SB946-P, BD244B, BD244C, BD538, BD540B, BD540C, BD544B, BD544C, BD546B, BD546C, BD800, BD802, BD810, BD952, BD954, BD956, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDX78, D44C10, D44C11, D44C12, D45C10, D45C11, D45C12, D45H11, D45H11FP, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF15031 or MJF15031G.