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How to connect wires to prongs on switches?

Discussion in 'General Electronics Discussion' started by Send_Help, Dec 31, 2017.

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  1. Send_Help

    Send_Help

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    Nov 26, 2017
    Anyone know how to connect wires to the prongs on a switch like this?
    [​IMG]
     
  2. PetePan

    PetePan

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    Sep 2, 2017
    Use spade connectors
    [​IMG]
     
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  3. duke37

    duke37

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    Jan 9, 2011
    Or solder. However, if you use solder, make sure that no flux gets up into the switch or the contact will be poor.
     
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  4. kellys_eye

    kellys_eye

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    1,146
    Jun 25, 2010
    The spade connector comes in two main sizes, 1/4" and 'mini' (3.7mm shown below) so check before ordering.

    Mini Spade.png
     
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  5. AnalogKid

    AnalogKid

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    686
    Jun 10, 2015
    3 common sizes: 0.250", 0.187", and 0.110".

    The 250 and 187 also are built for two different tab thicknesses *each*, 0.031" and 0.022"(?). The thickness matched up is important - too thick and getting the connector on is nearly impossible; too thin and the connector falls off.

    They also come in a fully insulated style, where the plastic around the barrel extends up to the edge of the connector area. This is required for safety agency approval for anything above 32 V, or 72 V, or other limits depending on the type of equipment and access to the wiring. Since you are new enough to be asking this level of question, I recommend the fully insulated type. That's not a dig, just experience.

    ak
     
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  6. PetePan

    PetePan

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    Sep 2, 2017
    Send_Help, the team has given some good tips and warnings of potential pitfalls. Of course help/helping is what we are here for.

    Direct soldering wires to spade terminals will work of course, however this would not be recommended where vibration is a factor. Especially don't use it on any automotive application. There is no support for the wire which can fatigue and fracture at the solder joint.

    Crimp style connectors as pictured have their own set of problems. This is compounded by prolific Chinese manufacturing competition. One issue I discovered were female spades that were made of too thin gauge material. Consequently they relaxed and came loose.

    I'll snip it there.
     
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  7. hevans1944

    hevans1944 Hop - AC8NS

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    2,116
    Jun 21, 2012
    After crimping the wires inside the spade terminals, I like to attach them to the switch terminals and then solder both together. If you later need to replace the switch, it's no big deal to unsolder the spade terminal from the switch terminal.
     
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  8. Send_Help

    Send_Help

    6
    0
    Nov 26, 2017
    What does it mean to crimp wires?
     
  9. PetePan

    PetePan

    27
    6
    Sep 2, 2017
    hevans1944 and Send_Help like this.
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