2SA1284-E Bipolar Transistor

Characteristics of 2SA1284-E Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -100 V
  • Collector-Base Voltage, max: -100 V
  • Emitter-Base Voltage, max: -5 V
  • Collector Current − Continuous, max: -0.5 A
  • Collector Dissipation: 0.9 W
  • DC Current Gain (hfe): 150 to 300
  • Transition Frequency, min: 130 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-92MOD

Pinout of 2SA1284-E

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

Classification of hFE

The 2SA1284-E transistor can have a current gain of 150 to 300. The gain of the 2SA1284 will be in the range from 55 to 300, for the 2SA1284-C it will be in the range from 55 to 110, for the 2SA1284-D it will be in the range from 90 to 180.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SA1284-E might only be marked "A1284-E".

Complementary NPN transistor

The complementary NPN transistor to the 2SA1284-E is the 2SC3244-E.

SMD Version of 2SA1284-E transistor

The 2SA1368 (SOT-89) and 2SA1368-E (SOT-89) is the SMD version of the 2SA1284-E transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.

Replacement and Equivalent for 2SA1284-E transistor

You can replace the 2SA1284-E with the 2SA1275, 2SA1319, KSA1013, KSA709C or KTA1275.
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