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  1. #1
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    to92 package

    hi
    i read something from a transistor site about transistor pin configuration
    it says "MOST COMMON LEAD IDENTIFICATION
    Pin 1. Emitter, Pin 2 . Base, Pin 3 . Collector
    TO-92 :Pin 1 is on the left when the flat side is toward you and legs are pointing down. "


    then i checked two of the transistors datasheet bc547 and bc bc 337 both npn transistors

    http://www.fairchildsemi.com/ds/BC%2FBC337.pdf
    http://www.datasheetcatalog.com/data.../4/BC547.shtml

    so the pin one is collector
    pin two is base and the pin three is emitter

    according to these two datasheet websites
    does it mean
    the transistor site says something totally wrong?
    hmmmmmmmm
    Don't all transistor t-90 packages have the same pinouts?
    Please clear my confusion
    Thanks a lot

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  2. #2
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    Re: to92 package

    There are three different TO92 configurations: American (EBC), Japanese (ECB) and European(CBE) ..
    http://www.armory.com/~rstevew/Publi...anspinouts.htm
    BEWARE ..

    Regards,
    IanP



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  3. #3
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    Re: to92 package

    hi
    oh
    i did not know that
    very useful info thanks tons pal
    greetings



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  4. #4
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    to92 package

    The datasheet for a transistor shows which pin is what.



  5. #5
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    Re: to92 package

    Pin 1. Emitter, Pin 2 . Base, Pin 3 . Collector
    TO-92 :Pin 1 is on the left when the flat side is toward you and legs are pointing down
    There are two common pinouts, but the quoted is none of them, simply erroneous, I think. You should consult the datasheets instead of asking your hairdresser (or similar sources), as suggested.



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