small footprint 2-contact IDC connectors? - Page 1
Forum section: electronics / projects

author: Watth
author_rank: Frequent Contributor
timestamp: January 23, 2023, 09:11:42 pm
content: Hey,I'm considering the design of a programmable LED mounted on cables. Each LED has its tiny PCB (a few mm each side), that is mounted along power wires (about 0.4 mm² each).The data wire can be soldered, as it is daisy chained. For the two power wires, I'm looking into IDC transition connectors as they seem to have the advantage of not requiring wire stripping nor soldering.The issue is that, as I'm exploring options, the connectors I find are either to large, or don't exist in 2 pins configurations.So do you know any suitable reference?Thanks for reading!

author: ajb
author_rank: Super Contributor
timestamp: January 24, 2023, 08:44:03 pm
content: Are you looking for something that can be unplugged from the PCB, or something that allows the wire to be punched down directly on the PCB?A quick google turned up these:https://www.digikey.com/en/products/detail/kyocera-avx/709177001522006/7101337Would they (or something like them) work? There seem to be other options, possibly through hole or maybe smaller versions as well.

author: Watth
author_rank: Frequent Contributor
timestamp: January 25, 2023, 10:45:55 am
content: Quote from: ajb on January 24, 2023, 08:44:03 pmpluggable or PCB connector: well both options are good to me.I already saw the type of connecter you link to, the issue being their size.I've explored a few manufacturers' catalogue, and it seem I want something unrealistic: for this wire gauge connectors are too big.Anyway,thanks for your reply!

author: berke
author_rank: Frequent Contributor
timestamp: January 25, 2023, 03:54:35 pm
content: How about this:https://www.molex.com/molex/products/part-detail/pcb_headers/5037630291

author: Watth
author_rank: Frequent Contributor
timestamp: January 25, 2023, 04:13:20 pm
content: I don't think these are compatible with IDC cable connectors.

author: tszaboo
author_rank: Super Contributor
timestamp: January 25, 2023, 04:18:03 pm
content: AVX has these in their portfolio, especially for LED lighting.https://www.kyocera-avx.com/products/connectors/wire-to-board/idc-connectors-14-28-awg/

author: Watth
author_rank: Frequent Contributor
timestamp: January 25, 2023, 07:26:53 pm
content: Quote from: tszaboo on January 25, 2023, 04:18:03 pmIt seems I didn't check the whole AVX catalog, these on could do the trick.The issue is these don't seem available.Thanks anyway!

author: tooki
author_rank: Super Contributor
timestamp: January 25, 2023, 07:59:36 pm
content: Quote from: Watth on January 23, 2023, 09:11:42 pmDefine “too large”. That can mean anything without context.

author: Watth
author_rank: Frequent Contributor
timestamp: January 26, 2023, 01:05:59 pm
content: That's true!I also haven't decided if I double each PCB's number of LED. Maybe I should first try the LED model I'm looking into to see if I need to put more than one of these LED on each board to have more light intensity.So it's true the one's that have been considered until now would do.

author: tooki
author_rank: Super Contributor
timestamp: January 26, 2023, 07:15:12 pm
content: That still isn’t an answer as to what “too large” is. You need to be specific. Give us millimeters.

author: Watth
author_rank: Frequent Contributor
timestamp: January 27, 2023, 01:09:50 pm
content: Quote from: tooki on January 26, 2023, 07:15:12 pmI thought my previous answer implicitly said: "actually I need to think about it".

author: tszaboo
author_rank: Super Contributor
timestamp: January 27, 2023, 01:31:16 pm
content: Quote from: Watth on January 25, 2023, 07:26:53 pmYou probably have to contact them for samples, and buy a whole reel. Not all company will have their entire portfolio on digikey. Good luck.

author: Watth
author_rank: Frequent Contributor
timestamp: February 02, 2023, 12:18:33 pm
content: Quote from: Watth on January 27, 2023, 01:09:50 pmNow that I re-read my message, I realize it sounds rude while your point is perfectly valid. Sorry about that.