2SB631 Bipolar Transistor

Characteristics of 2SB631 Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -100 V
  • Collector-Base Voltage, max: -100 V
  • Emitter-Base Voltage, max: -5 V
  • Collector Current − Continuous, max: -1 A
  • Collector Dissipation: 8 W
  • DC Current Gain (hfe): 60 to 320
  • Transition Frequency, min: 130 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-126

Pinout of 2SB631

Here is an image showing the pin diagram of this transistor.

Classification of hFE

The 2SB631 transistor can have a current gain of 60 to 320. The gain of the 2SB631-D will be in the range from 60 to 120, for the 2SB631-E it will be in the range from 100 to 200, for the 2SB631-F it will be in the range from 160 to 320.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SB631 might only be marked "B631".

Complementary NPN transistor

The complementary NPN transistor to the 2SB631 is the 2SD600.

SMD Version of 2SB631 transistor

The 2SA1368 (SOT-89) is the SMD version of the 2SB631 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.

Replacement and Equivalent for 2SB631 transistor

You can replace the 2SB631 with the 2SA1021, 2SA1220, 2SA1220A, 2SB631K, 2SB649, KSA1220, KSA1220A or MJE254.
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