2SB705 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -140 V
• Collector-Base Voltage, max: -140 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -10 A
• Collector Dissipation: 120 W
• DC Current Gain (h_fe): 40 to 200
• 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 2SB705 transistor can have a current gain of 40 to 200. The gain of the 2SB705-Q will be in the range from 100 to 200, for the 2SB705-R it will be in the range from 60 to 120, for the 2SB705-S it will be in the range from 40 to 80.Sometimes the "2S" prefix is not marked on the package - the 2SB705 might only be marked "B705".The complementary NPN transistor to the 2SB705 is the 2SD745.You can replace the 2SB705 with the 2SA1007A, 2SA747A, 2SA908, 2SA909, 2SB600, 2SB697, 2SB697K, 2SB705A, 2SB705B, 2SB706, 2SB706A or 2SB723.