2SD866 Bipolar Transistor

Characteristics of 2SD866 Transistor

  • Type: NPN
  • Collector-Emitter Voltage, max: 80 V
  • Collector-Base Voltage, max: 130 V
  • Emitter-Base Voltage, max: 7 V
  • Collector Current − Continuous, max: 7 A
  • Collector Dissipation: 40 W
  • DC Current Gain (hfe): 60 to 260
  • Transition Frequency, min: 30 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-220

Pinout of 2SD866

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

Classification of hFE

The 2SD866 transistor can have a current gain of 60 to 260. The gain of the 2SD866-P will be in the range from 130 to 260, for the 2SD866-Q it will be in the range from 90 to 180, for the 2SD866-R it will be in the range from 60 to 120.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SD866 might only be marked "D866".

Complementary PNP transistor

The complementary PNP transistor to the 2SD866 is the 2SB870.

Replacement and Equivalent for 2SD866 transistor

You can replace the 2SD866 with the 2SD1271, 2SD866A, BD537, BD543B, BD543C, BD545B, BD545C, BD799, BD801, BD809, BDT83, BDT83F, BDT85, BDT85F, BDT87, BDT87F, BDX77, D44H11, D44H11FP, MJE15028, MJE15028G, MJE15030, MJE15030G, MJF15030 or MJF15030G.
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