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Wall wart plugs

Discussion in 'Electrical Engineering' started by Den, Aug 29, 2004.

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  1. Den

    Den Guest


    Like most folks, I seem to have a plethora of wall transformers. They all
    have different output (low voltage) plugs, but these plugs do seem to have a
    lot of commonality. Can anyone point me to a definitive (or nearly
    definitive) list and specification of the different types of output plugs


  2. Norm Dresner

    Norm Dresner Guest

    There ain't no such thing .. I've seen up to 6 pin connectors used for 5
    voltage wall warts and I doubt if that's even the record.

  3. Norm Dresner

    Norm Dresner Guest

    Actually there are good reasons for keeping someone else's wall wart out of
    my input plug unless there's a very good match between polarity, voltage and
    current supply. I certainly wouldn't want a center negative, 18 V AC
    adapter plugged into my label printer that expects 5V DC with center

    There certainly aren't a sufficient variety of connectors for all of the
    different polarity, voltage, current combinations available so we'll
    probably never see a standard emerge despite a real need for it. To see the
    variety of available combinations, look at one supplier's list of 143 DC
    output wall warts at

    Unfortunately there are no standards at all so it's a hit-or-miss
    proposition as to whether a foreign adapter will mate with a piece of
    equipment. Usually as soon as I get one, I create a label that indicates
    what equipment it goes to.

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