Asking for 5-7Amp connector recommendations

Discussion in 'General Electronics Chat' started by Wendy, May 29, 2013.

  1. Wendy

    Thread Starter Moderator

    Mar 24, 2008
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    I'm not sure a 3.5mm barrel power connector is rated for this kind of load. I could use Molex, but they tend to be ugly and cumbersome.

    Recommendations?
     
  2. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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    number of poles?
    board-board?
    wire-board?
    panel mount?
    connectorized or wire clamp?
    touch safe?
    ,etc...
     
  3. MrChips

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    Oct 2, 2009
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    I had the same problem not too long ago. I replaced the 3.5mm barrel connector with banana jacks and 16AWG cabling.
    This was for a permanent 19" rack mount equipment so banana jacks work well in this situation.

    btw, the 6A load was split and distributed to a number of mcu boards via IDC ribbon cable and connectors. One split was taking 2A, I think, and the ribbon cable and connector got discolored from heat stress.
     
    Last edited: May 29, 2013
  4. Wendy

    Thread Starter Moderator

    Mar 24, 2008
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    Thanks, I'm going to try to find a socket solution if I can. Definitely a polarized one.

    Come to think of it, I have seen barrels used on laptops, which pulls current in that range. I'll look around for some spec sheets.

    I have this delusion of making a 100W class D audio amp for a PA/sound system (mono). I've already bought a 100W speaker in a enclosure, 6-8Ω, and I've picked up a 24VDC 5A power supply for under $10. Now to figure out how to get CMOS to run on 24VDC with minimum parts count. I have a few ideas on the subject.
     
  5. bertus

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    Apr 5, 2008
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    Wendy likes this.
  6. Papabravo

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  7. MrChips

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  8. Wendy

    Thread Starter Moderator

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    Radio Shack used to sell the Jones Connectors. I was kinda hoping to find them again, knowing the name is more than half the battle. It was during the CB craze years.
     
  9. Georacer

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  10. GopherT

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    Nov 23, 2012
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    The brushless motors used in R/C airplanes are pulling 20 amps and more from lithium polymer batteries. They use a high-capacity barrel connector with 10 to 12 gauge wire.

    Check out your local R/C hobby store.
     
  11. Gary_P

    New Member

    Apr 4, 2013
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    You might give the XLR connector a thought. The Neutrik XLR contacts are rated for 16A each and don't cost much.

    The 3 contacts would give you the capability to have + - and Ground separate for ground loop control.

    XLR's look nice also if that matters.
     
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