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I'm currently working on a design that requires connection to a peripheral with a snap-lock interface. The part I need on the design is the male 'button' style contact found on electrodes such as those shown below. Ideally I'm looking for a surface mount part equivalent to that connection, however a name of the technology or anything that can point me in the right direction would be greatly appreciated.

Button style connector example

The other half of the connector (the 'socket' that mates with the 'button') can be found on cables like the ones below typically.

Socket style connector example

The only reference to the connectors themselves I can find is that they are "sewing snap buttons size 3", but I am looking for a professional solderable electrical equivalent (although I'm sure the sewing versions would probably work fine, I think the BOM may look a little strange to my colleagues...).

Any information that can be found would be greatly appreciated!

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  • \$\begingroup\$ Snap-to-wire, or Snap-to-PCB? \$\endgroup\$ Commented Jan 10, 2017 at 4:35
  • \$\begingroup\$ @Nick Snap-to-PCB \$\endgroup\$
    – user135485
    Commented Jan 10, 2017 at 4:46
  • \$\begingroup\$ I once was looking for it too. In the end i used an RF connector and modified the ECG cables. For low volume it worked just fine. \$\endgroup\$
    – user76844
    Commented Jan 10, 2017 at 5:01
  • \$\begingroup\$ Did you got the part number of the connector ?. I am also currently in search for the part number. \$\endgroup\$
    – kpol
    Commented Feb 17 at 16:58

1 Answer 1

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a surface mount part equivalent to that connection

Solder a textile snap-button to the board. You can get them at any craft store that sells sewing supplies. That's how everyone I know does it for eletrophysiology hobby projects, and even for commercial prototyping. For a product, you'd have to probably have these custom made with a coating that makes sense for the intended application, a more hermetic design that won't pass liquids through the button, etc.

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