transistor

Discussion in 'General Electronics Chat' started by hassi, Apr 23, 2013.

  1. hassi

    Thread Starter New Member

    Mar 1, 2013
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    What is that component called whose symbol is similar to that of a BJT except that in place of single arrow there are two arrows at place of indicating emitter?
     
  2. Jony130

    AAC Fanatic!

    Feb 17, 2009
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  3. panic mode

    Senior Member

    Oct 10, 2011
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    this is form of abbreviation, nothing else. it is commonly seen in TTL datasheets for example.
    it means that there are multiple transistors (number is same as number of emitters). and all of them have bases connected together into one "base", all collectors are connected together into one "collector" but emitters are individual circuits (inputs).
    this is the most common case but as previous post shows, occasionally there are alternate representations that may not follow explained convention. in that case additional detailed circuit is used to explain internal connections.
     
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  4. crutschow

    Expert

    Mar 14, 2008
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    Actually, the structure used to fabricate the device is a single-transistor with multiple emitter structures, and a common base region and collector region as shown here. It does act the same as multiple transistors with their bases and collectors tied together.
     
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  5. hassi

    Thread Starter New Member

    Mar 1, 2013
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    thanks a lot.....
     
  6. hassi

    Thread Starter New Member

    Mar 1, 2013
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    i get my answer.... :)
     
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