2SB703 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -100 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -4 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 40 to 200
• Transition Frequency, min: 10 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 2SB703 transistor can have a current gain of 40 to 200. The gain of the 2SB703-Q will be in the range from 100 to 200, for the 2SB703-R it will be in the range from 60 to 120, for the 2SB703-S it will be in the range from 40 to 80.Sometimes the "2S" prefix is not marked on the package - the 2SB703 might only be marked "B703".The complementary NPN transistor to the 2SB703 is the 2SD743.The BDP952 (SOT-223) and BDP954 (SOT-223) is the SMD version of the 2SB703 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SB703 with the 2SA1010, 2SA1488A, 2SA771, 2SB1016, 2SB1017, 2SB1090, 2SB1367, 2SB1368, 2SB595, 2SB596, 2SB633, 2SB703A, 2SB708, 2SB747, 2SB762A, 2SB942A, 2SB995, 2SB996, BD244B, BD244C, BD538, BD540B, BD540C, BD800, BD802, BD810, BD952, BD954, BD956, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDT94, BDT94F, BDT96, BDT96F, BDX78, D44C10, D44C11, D44C12, D45C10, D45C11, D45C12, KSA1010, KSB1017, KSB596, KSB708, KTB1367, KTB1368, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF15031, MJF15031G or NTE153.