2SA1366 Bipolar Transistor

Characteristics of 2SA1366 Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -50 V
  • Collector-Base Voltage, max: -55 V
  • Emitter-Base Voltage, max: -4 V
  • Collector Current − Continuous, max: -0.4 A
  • Collector Dissipation: 0.15 W
  • DC Current Gain (hfe): 90 to 500
  • Transition Frequency, min: 150 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: SOT-23

Pinout of 2SA1366

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

Classification of hFE

The 2SA1366 transistor can have a current gain of 90 to 500. The gain of the 2SA1366-D will be in the range from 90 to 180, for the 2SA1366-E it will be in the range from 150 to 300, for the 2SA1366-F it will be in the range from 250 to 500.


Sometimes the "2S" prefix is not marked on the package - the 2SA1366 might only be marked "A1366".

Complementary NPN transistor

The complementary NPN transistor to the 2SA1366 is the 2SC3441.

Replacement and Equivalent for 2SA1366 transistor

You can replace the 2SA1366 with the 2SA1518, 2SA1519, 2SA1520, 2SA1521, FMMTA55, FMMTA56, KST55, KST56 or MMBT4354.
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