2SC3954-C Bipolar Transistor

Characteristics of 2SC3954-C Transistor

  • Type: NPN
  • Collector-Emitter Voltage, max: 120 V
  • Collector-Base Voltage, max: 120 V
  • Emitter-Base Voltage, max: 3 V
  • Collector Current − Continuous, max: 0.3 A
  • Collector Dissipation: 8 W
  • DC Current Gain (hfe): 40 to 80
  • Transition Frequency, min: 400 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-126F

Pinout of 2SC3954-C

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

Classification of hFE

The 2SC3954-C transistor can have a current gain of 40 to 80. The gain of the 2SC3954 will be in the range from 40 to 320, for the 2SC3954-D it will be in the range from 60 to 120, for the 2SC3954-E it will be in the range from 100 to 200, for the 2SC3954-F it will be in the range from 160 to 320.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SC3954-C might only be marked "C3954-C".

Complementary PNP transistor

The complementary PNP transistor to the 2SC3954-C is the 2SA1539-C.

Replacement and Equivalent for 2SC3954-C transistor

You can replace the 2SC3954-C with the 2SC3599, 2SC3599-C, MJE341, MJE344 or MJE344G.
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