PCB connectors and wiring harness (Where to buy?) - Page 1
Forum section: electronics / beginners

author: tineras
author_rank: Contributor
timestamp: December 13, 2012, 07:12:58 pm
content: I am having a heck of a time finding a certain type of pcb connector and wiring harness for a project I'm doing. My board is only 2"x2" and I am looking for a connector that is 9 pins (through-hole) with 2.54mm (.1") spacing. Because my board is so small, I don't want a gigantic Molex connector on there. I'm looking for something like this:http://www.alibaba.com/product-gs/484433600/TJC3_XH2_54_14_pin_auto.htmlwhich uses a cable like this:http://best-b2b.com/userimg/545/563-1/wire-harness-for-tv-top-set-box-262.jpgThis is actually the product I am trying to connect to my board. I am willing to put another connector on the modem if needed.https://www.sparkfun.com/products/155I'd prefer to buy from somewhere that doesn't take an eternity to ship to the US. If I could buy from a reputable store IN the US, that would be even better. The hunt for this type of connector has been driving me crazy and I don't need 1000 of them from somewhere like Alibaba.If anyone has any good info, please let me know. It does not have to be that exact style. I just need something small, through-hole, .1" pitch.Thanks!

author: paul23
author_rank: Regular Contributor
timestamp: December 13, 2012, 07:21:48 pm
content: This is the first result from digikey, but there are hundreds of other similar ones.http://www.digikey.com/product-detail/en/2132230-9/A101091-ND/2288191In case you don´t know, you need to get crimps and a crimping tool for those types of connectors

author: tineras
author_rank: Contributor
timestamp: December 13, 2012, 08:06:33 pm
content: Quote from: paul23 on December 13, 2012, 07:21:48 pmI looked at many pages on digikey. I may not have noticed that one since the pitch is 2.50mm and not 2.54mm, so the results got filtered. Anyway, the mating connector the device you linked is out of stock. Can I use a 2.50mm pitch connector? If so, that opens up my options a bit (at least on digikey) since there seems to be quite a bit more of these connectors at that pitch.I did just buy a crimper, but I'll been to buy the contacts.As for the wire, a reasonably gauged ribbon cable should do, right?

author: Nirios
author_rank: Regular Contributor
timestamp: December 13, 2012, 10:05:07 pm
content: Here is one from Mouser. Take a look at the KK series.http://www.mouser.com/ProductDetail/Molex/22-27-2051/?qs=sGAEpiMZZMtsLRyDR9nM13kGx0WjOXXXFdXl8Q3U5Og%3d

author: tineras
author_rank: Contributor
timestamp: December 13, 2012, 10:42:51 pm
content: Quote from: Nirios on December 13, 2012, 10:05:07 pmThank you for responding. However, I have had no issue finding those large Molex connectors. I'm just trying to find something small/short since my board is so small.Here is my board:https://lh3.googleusercontent.com/-Y3ceZe0niAU/UMpZQck3vCI/AAAAAAAABAo/JOuukFsYBGc/s800/Board_Quarter.jpgThe 9 through-hole pads on the right is where I'll be placing this connector. If I find something I like, I'll replace all the connectors on the board.Honestly, if I keep looking I'm sure I can sort it out. I just thought this may be a good source of knowledge for this.

author: notsob
author_rank: Frequent Contributor
timestamp: December 13, 2012, 10:48:55 pm
content: If you want smaller pcb mount - try molex 'microblade' serieshttp://www.molex.com/molex/products/family?channel=products&chanName=family&key=microblade

author: tineras
author_rank: Contributor
timestamp: December 13, 2012, 10:58:51 pm
content: Quote from: notsob on December 13, 2012, 10:48:55 pmSince they are 2mm pitch and won't work for me, I'll keep that in mind for the future. Thank you.

author: free_electron
author_rank: Super Contributor
timestamp: December 13, 2012, 11:06:25 pm
content: CGRID SL family connectors ?http://www.digikey.com/scripts/dksearch/dksus.dll?vendor=0&keywords=c+grid+70555

author: tineras
author_rank: Contributor
timestamp: December 13, 2012, 11:19:39 pm
content: What this really comes down to is I didn't design my board with connectors in mind; which I should have. Bad on me. And maybe I'm too hung up on finding small connectors.Thank you all for your suggestions. I will keep poking around, but may just use something that was suggested here.