2SB1140-S Bipolar Transistor

Characteristics of 2SB1140-S Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -20 V
  • Collector-Base Voltage, max: -25 V
  • Emitter-Base Voltage, max: -5 V
  • Collector Current − Continuous, max: -5 A
  • Collector Dissipation: 10 W
  • DC Current Gain (hfe): 140 to 280
  • Transition Frequency, min: 320 MHz
  • Operating and Storage Junction Temperature Range: -55 to +125 °C
  • Package: TO-126

Pinout of 2SB1140-S

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

Classification of hFE

The 2SB1140-S transistor can have a current gain of 140 to 280. The gain of the 2SB1140 will be in the range from 100 to 400, for the 2SB1140-R it will be in the range from 100 to 200, for the 2SB1140-T it will be in the range from 200 to 400.


Sometimes the "2S" prefix is not marked on the package - the 2SB1140-S might only be marked "B1140-S".

Replacement and Equivalent for 2SB1140-S transistor

You can replace the 2SB1140-S with the 2SA1120, 2SA1357, 2SB1127 or 2SB1127-S.
If you find an error please send an email to mail@el-component.com