2SA953 Bipolar Transistor

Characteristics of 2SA953 Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -60 V
  • Collector-Base Voltage, max: -60 V
  • Emitter-Base Voltage, max: -5 V
  • Collector Current − Continuous, max: -0.3 A
  • Collector Dissipation: 0.6 W
  • DC Current Gain (hfe): 90 to 400
  • Transition Frequency, min: 100 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-92

Pinout of 2SA953

The 2SA953 is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.

Classification of hFE

The 2SA953 transistor can have a current gain of 90 to 400. The gain of the 2SA953-K will be in the range from 200 to 400, for the 2SA953-L it will be in the range from 135 to 270, for the 2SA953-M it will be in the range from 90 to 180.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SA953 might only be marked "A953".

Complementary NPN transistor

The complementary NPN transistor to the 2SA953 is the 2SC2002.

Replacement and Equivalent for 2SA953 transistor

You can replace the 2SA953 with the 2SA954, 2SB560 or KSA708C.
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