2SA1405 Bipolar Transistor

Characteristics of 2SA1405 Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -120 V
  • Collector-Base Voltage, max: -120 V
  • Emitter-Base Voltage, max: -4 V
  • Collector Current − Continuous, max: -0.3 A
  • Collector Dissipation: 8 W
  • DC Current Gain (hfe): 40 to 320
  • Transition Frequency, min: 500 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-126

Pinout of 2SA1405

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

Classification of hFE

The 2SA1405 transistor can have a current gain of 40 to 320. The gain of the 2SA1405-C will be in the range from 40 to 80, for the 2SA1405-D it will be in the range from 60 to 120, for the 2SA1405-E it will be in the range from 100 to 200, for the 2SA1405-F it will be in the range from 160 to 320.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SA1405 might only be marked "A1405".

Complementary NPN transistor

The complementary NPN transistor to the 2SA1405 is the 2SC3599.

Replacement and Equivalent for 2SA1405 transistor

You can replace the 2SA1405 with the 2SA1539.
If you find an error please send an email to mail@el-component.com