2SB861B Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -150 V
• Collector-Base Voltage, max: -200 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -2 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 60 to 120
• Operating and Storage Junction Temperature Range: -45 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The 2SB861B transistor can have a current gain of 60 to 120. The gain of the 2SB861 will be in the range from 60 to 200, for the 2SB861C it will be in the range from 100 to 200.Sometimes the "2S" prefix is not marked on the package - the 2SB861B might only be marked "B861B".The complementary NPN transistor to the 2SB861B is the 2SD1138B.You can replace the 2SB861B with the 2SA1667, 2SA1668, 2SA1859, 2SA1859A, 2SB546, 2SB546A, 2SB546A-L, 2SB547, 2SB630, 2SB630-R, 2SB940, 2SB940-Q, 2SB940A, 2SB940A-Q, FJP1943, FJPF1943, KSB546, MJE15031, MJE15031G, MJE15033, MJE15033G, MJE5850, MJE5850G, MJF15031, MJF15031G or NTE398.