2SB647B Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -120 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 0.9 W
• DC Current Gain (h_fe): 60 to 120
• Transition Frequency, min: 140 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92MOD

Here is an image showing the pin diagram of this transistor.The 2SB647B transistor can have a current gain of 60 to 120. The gain of the 2SB647 will be in the range from 60 to 320, for the 2SB647C it will be in the range from 100 to 200, for the 2SB647D it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SB647B might only be marked "B647B".The complementary NPN transistor to the 2SB647B is the 2SD667B.You can replace the 2SB647B with the 2SA1013, 2SA1013R, 2SA1275, 2SA1275-R, 2SB647A, 2SB647AB, KSA1013, KSA1013R, KTA1275 or KTA1275R.