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I'm hoping someone can help me identify this connector housing. It is 3-pin nylon and keyed by small squares in two corners. I've searched all through Mouser, Digikey, TE, etc and haven't found it.

Notice the two corners have squares to key the mating connector

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  • \$\begingroup\$ Can you measure the spacing between the pins and report back to us? \$\endgroup\$ – ThreePhaseEel Sep 10 '17 at 15:53
  • \$\begingroup\$ It may be a week before I get back to the shop, but I believe it is .250" (6.35mm) pitch. \$\endgroup\$ – Chris Sep 10 '17 at 16:12
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This looks to me a lot like a "Molex connector", used to supply power to hard drives in older computers. EXCEPT, those connectors were 4 pins, not 3.

Going to Wikipedia https://en.wikipedia.org/wiki/Molex_connector , it seems that these are now most often not Molex brand, but "AMP MATE-N-LOK" connectors (which is slightly further confused since AMP is now called TE Connectivity.)

Wikipedia calls the specific 4-pin connector I'm familiar with an "AMP MATE-N-LOK 1-480424-0 Power connector".

The closest match I was able to find for your 3-pin connector with square keys in two corners is this:

https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/1-480303-0/A1429-ND/19287

It appears to be called an AMP 1-480303-0 connector. The pitch is 0.200", not 0.250". Hopefully it will match when you check yours! If not, I'd bet yours is some other AMP MATE-N-LOK connector I wasn't able to find; perhaps with that information you'll be able to locate it.

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  • \$\begingroup\$ I'm betting that the connector you've found is indeed the proper one. I may just order a few and see if they happen to work when I get back to the project. \$\endgroup\$ – Chris Sep 10 '17 at 20:30
  • \$\begingroup\$ @chris I can't comment on another answer because I don't have enough rep here, but I see you identified the source of the connector as a Cirrus SR22 aircraft. You should have said in the original question! ;-) Take a look at the wiring manual, which is online: The whole manual (find the section for the light in question, which will have a wiring diagram with a number): servicecenters.cirrusdesign.com/techpubs/pdf/WM/SR22/html/… The section at the end enumerating all the connectors used: servicecenters.cirrusdesign.com/techpubs/pdf/WM/SR22/pdf/… \$\endgroup\$ – Glenn Willen Sep 11 '17 at 21:10
  • \$\begingroup\$ Also, please remember to mark the answer as accepted! :-) \$\endgroup\$ – Glenn Willen Sep 11 '17 at 21:11
  • \$\begingroup\$ Thanks so much. You were correct in your original identification of the connector and confirmed with the reference to the cirrus techpubs. Thanks so much. \$\endgroup\$ – Chris Sep 15 '17 at 15:42
  • \$\begingroup\$ Awesome, happy I could help! \$\endgroup\$ – Glenn Willen Sep 16 '17 at 4:12
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Could be a proprietary connector. What is it used in? More info would help. The big brands like SONY have a such a buying power that they have connectors made specifically for them, so you will never see them on anyone else's product.

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  • \$\begingroup\$ Used for interconnect of navigations lights on a Cirrus SR22 aircraft. \$\endgroup\$ – Chris Sep 10 '17 at 20:32

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