2SB649-D Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -120 V
• Collector-Base Voltage, max: -180 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1.5 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 160 to 320
• Transition Frequency, min: 140 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The 2SB649-D transistor can have a current gain of 160 to 320. The gain of the 2SB649 will be in the range from 60 to 320, for the 2SB649-B it will be in the range from 60 to 120, for the 2SB649-C it will be in the range from 100 to 200.Sometimes the "2S" prefix is not marked on the package - the 2SB649-D might only be marked "B649-D".The complementary NPN transistor to the 2SB649-D is the 2SD669-D.The PBHV9115T (SOT-23), PBHV9115X (SOT-89) and PBHV9115Z (SOT-223) is the SMD version of the 2SB649-D transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SB649-D with the 2SA1021, 2SA1021-Y, 2SA1249 or 2SA1507.