2SB705A-S Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -150 V
• Collector-Base Voltage, max: -150 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -10 A
• Collector Dissipation: 120 W
• DC Current Gain (h_fe): 40 to 80
• Transition Frequency, min: 17 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-3

Here is an image showing the pin diagram of this transistor.The 2SB705A-S transistor can have a current gain of 40 to 80. The gain of the 2SB705A will be in the range from 40 to 200, for the 2SB705A-Q it will be in the range from 100 to 200, for the 2SB705A-R it will be in the range from 60 to 120.Sometimes the "2S" prefix is not marked on the package - the 2SB705A-S might only be marked "B705A-S".The complementary NPN transistor to the 2SB705A-S is the 2SD745A-S.You can replace the 2SB705A-S with the 2SA1007A, 2SA1007A-S, 2SA908, 2SA909, 2SB552, 2SB552-R, 2SB554, 2SB554-R, 2SB600, 2SB600-S, 2SB697K, 2SB697K-C, 2SB705B, 2SB705B-S, 2SB706, 2SB706-S, 2SB706A, 2SB706A-S, 2SB723, MJ15012 or MJ15012G.