2SC3988 Bipolar Transistor

Characteristics of 2SC3988 Transistor

  • Type: NPN
  • Collector-Emitter Voltage, max: 500 V
  • Collector-Base Voltage, max: 800 V
  • Emitter-Base Voltage, max: 7 V
  • Collector Current − Continuous, max: 25 A
  • Collector Dissipation: 150 W
  • DC Current Gain (hfe): 15 to 50
  • Transition Frequency, min: 18 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-3P

Pinout of 2SC3988

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

Classification of hFE

The 2SC3988 transistor can have a current gain of 15 to 50. The gain of the 2SC3988-L will be in the range from 15 to 30, for the 2SC3988-M it will be in the range from 20 to 40, for the 2SC3988-N it will be in the range from 30 to 50.


Sometimes the "2S" prefix is not marked on the package - the 2SC3988 might only be marked "C3988".

Replacement and Equivalent for 2SC3988 transistor

You can replace the 2SC3988 with the 2SC3989, 2SC3990 or 2SC3991.
If you find an error please send an email to mail@el-component.com