Coax DC Power Jack

Discussion in 'General Electronics Chat' started by ramsey, Nov 10, 2010.

  1. ramsey

    Thread Starter New Member

    Nov 4, 2010
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    Hi again,

    I opened a thread a few days ago relating to building an electromagnet. My design uses a wall wart that outputs 18VAC (not VDC) and I found an appropriate receptacle connector based on the ID/OD but all the coaxial power jacks I've seen are all entitled "DC power jacks" and yet I don't really think it should matter if the input is from a VAC wall wart. But I just want to bring it up to see what the pros think because I don't want to screw anything up (I'm not experienced). Thanks again.
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Post more details for the connector.
     
  3. ramsey

    Thread Starter New Member

    Nov 4, 2010
    14
    0
    This is an example of a connector which should fit the connector off of the 18VAC wall wart which specifies 5.5mm OD 2.1mm ID.

    http://www.radioshack.com/product/index.jsp?productId=2102491

    Again its specified as DC but I cannot find any that says "For AC" which leads me to believe they all implicitly support AC, but clearly I have no clue.
     
  4. tracecom

    AAC Fanatic!

    Apr 16, 2010
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    It will work as well on AC as on DC. No problems.
     
  5. ramsey

    Thread Starter New Member

    Nov 4, 2010
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    I felt so too, but I needed the reassurance, thanks. :)
     
  6. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    RadioShack sells cheap junk from ***** at excessive prices. A name-brand jack would have a current rating and would last a long time. The RadioShack one has no manufacturer's name and no current rating. It might fail tomorrow.

    More reasons why RadioShack is gone from Canada.
     
  7. ramsey

    Thread Starter New Member

    Nov 4, 2010
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    I generally can agree with the fact that they charge more than other places online. The one thing they have going for them is having local stores which is great. But otherwise I order from other places online. And yeah, it'd be nice to know the current rating as well because I'm trying to drive 2 amps through it. Probably will look around elsewhere since my question is in fact answered.
     
  8. tracecom

    AAC Fanatic!

    Apr 16, 2010
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    See the attached link for what seems like good information about these connectors (of course with the caveat that Wikipedia info is user contributed.) Especially see the EIAJ section.

    http://en.wikipedia.org/wiki/Coaxial_power_connector
     
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