Replacing Darlington transistor

Discussion in 'General Electronics Chat' started by tinkerman, Sep 23, 2012.

  1. tinkerman

    Thread Starter Member

    Jul 22, 2012
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    Anyone try to replace a darlington transistor with two regular transistors?
    I'm looking at BU931T darlington. it has 10 amp capacity. Could two standard transistors with the second having similar current capacity replace the original?
     
  2. Dyslexicbloke

    Active Member

    Sep 4, 2010
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  3. crutschow

    Expert

    Mar 14, 2008
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    3,227
    Yes, in general you can replace a Darlington transistor with two regular transistors (it originally was called a Darlington pair and that's how it was done). The first transistor can be smaller but the second must be able to carry the maximum load current.
     
  4. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    It also has Vces=500V, Vceo=400V.
    Also, the "smaller" transistor will have to have at least 500V Vces, and minimum Hfe of around 30 at Ic=1Amp.
     
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