2SD1891 Bipolar Transistor

Characteristics of 2SD1891 Transistor

  • Type: NPN
  • Collector-Emitter Voltage, max: 90 V
  • Collector-Base Voltage, max: 110 V
  • Emitter-Base Voltage, max: 5 V
  • Collector Current − Continuous, max: 4 A
  • Collector Dissipation: 40 W
  • DC Current Gain (hfe): 5000 to 30000
  • Transition Frequency, min: 20 MHz
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-220F

Pinout of 2SD1891

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

Classification of hFE

The 2SD1891 transistor can have a current gain of 5000 to 30000. The gain of the 2SD1891-P will be in the range from 5000 to 15000, for the 2SD1891-Q it will be in the range from 8000 to 30000.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SD1891 might only be marked "D1891".

Complementary PNP transistor

The complementary PNP transistor to the 2SD1891 is the 2SB1251.

Replacement and Equivalent for 2SD1891 transistor

You can replace the 2SD1891 with the 2SD1195, 2SD1196, 2SD1829, 2SD1830, 2SD1892, 2SD2241, 2SD2495, 2SD772, 2SD792, 2SD823, BD243C, BD539C, BD539D, BD543C, BD545C, BD649, BD651, BD801, BD901, BD953, BD955, BDT61B, BDT61C, BDT63B, BDT63C, BDT65B, BDT65C, BDT85, BDT85F, BDT87, BDT87F, BDW42, BDW42G, BDW43, BDX33C, BDX33CG, BDX33D, BDX53C, BDX53CG, BDX53D, BDX53E, BDX53F, MJE15028, MJE15028G, MJE15030, MJE15030G, MJF122, MJF122G, MJF15030, MJF15030G, TIP122, TIP122G, TIP142T, TIP41D, TIP41E, TIP41F, TIP42D, TIP42E or TIP42F.
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