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Female round 0.025" pin connector
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LaurentR:
A lot of Tek and other brand adapters use round female connectors that can take either standard square 0.025" male pins or round ones and have an internal spring in it. For example:

https://4gte.com/wp-content/uploads/2021/11/020-2008-00-1-scaled.jpg

I need to make some adapter cables (Y cables...) and while I could use standard 0.1" female pins in a plastic 0.1" body (I have some and a crimping tool), I am wondering if anyone knows a source of the round ones similar to what Tek and others use. I found them to be better at holding round 0.025" pins.
jpanhalt:
Mill-Max makes nice female connectors for 0.025" diameter round pins.  It also makes sizes for 0.025" square.
https://www.mill-max.com/products/new/precision-machined-connector-pins?keyword=&creative=593675627468&gclid=EAIaIQobChMImoKwmOun-QIVSh-tBh0QUwnQEAAYASAAEgKFkfD_BwE
tooki:
Bear in mind that a 0.025” square pin has a diagonal of 0.036”, so if you insert one into a socket made for 0.025” round pins, you may damage the socket.
tooki:

--- Quote from: LaurentR on August 02, 2022, 02:14:57 am ---I need to make some adapter cables (Y cables...) and while I could use standard 0.1" female pins in a plastic 0.1" body (I have some and a crimping tool), I am wondering if anyone knows a source of the round ones similar to what Tek and others use. I found them to be better at holding round 0.025" pins.

--- End quote ---
I’d suggest ultra-high-force Mini-PV sockets (the “original” DuPont connector). They hold far better than standard Chinese DuPont contacts, and they don’t loosen up after a handful of insertions. (“PV” apparently originally stood for “perpetual virgin” because of their long lasting contact design.)

They aren’t round, but they’re appreciably narrower than Chinese DuPont contacts, so some heat shrink over those makes a great slender plug.
LaurentR:

--- Quote from: tooki on August 02, 2022, 04:42:50 pm ---Bear in mind that a 0.025” square pin has a diagonal of 0.036”, so if you insert one into a socket made for 0.025” round pins, you may damage the socket.

--- End quote ---

Thanks!

That's exactly why I was asking the question. Tek and many others use these round female sockets with a spring in it and they seem to survive (and are mean to survive) insertion of both round and square pins, and square pins in any orientation, which is pretty amazing.
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