2SA1021 Bipolar Transistor

Characteristics of 2SA1021 Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -150 V
  • Collector-Base Voltage, max: -150 V
  • Emitter-Base Voltage, max: -6 V
  • Collector Current − Continuous, max: -1.5 A
  • Collector Dissipation: 20 W
  • DC Current Gain (hfe): 60 to 320
  • Transition Frequency, min: 50 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-126

Pinout of 2SA1021

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

Classification of hFE

The 2SA1021 transistor can have a current gain of 60 to 320. The gain of the 2SA1021-O will be in the range from 100 to 200, for the 2SA1021-R it will be in the range from 60 to 120, for the 2SA1021-Y it will be in the range from 160 to 320.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SA1021 might only be marked "A1021".

Complementary NPN transistor

The complementary NPN transistor to the 2SA1021 is the 2SC2481.
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