Help with connector names - Page 1
Forum section: electronics / general

author: apelly
author_rank: Unknown
timestamp: July 19, 2013, 02:00:34 am
content: Hi guys,I'm looking for a small variety of connectors for a project I'm working on, but looking online at places like element14/ebay is proving difficult. The problem is finding matching male, female and crimp pins. The other thing is the enormous price range. Surely these things can be found for just a few cents each. Anyway, knowing the names/part numbers will surely help my search.I'm after four types:1) Male and female molex connectors of the 4 pin chamfered type used on computer power supplies. Around 10 each.2) Male and female keyed 3 wire connectors. Something liketheseon ebay. Somewhere around 100 pairs. Pololu calls these Futaba J connectors. They don't actually have to be this kind. I'm open to suggestions. A 4 pin connector would work too; I can leave one unpopulated for polarity.3) A couple of different sized crimp connector housings likethisat Pololu.4) Some spade terminals liketheseon ebay. I mention these because of the next question:Finally, is there one crimp tool that will work for all of these?Hopefully someone will notice this that has worked with these things and can send me in the right direction without wasting too much effort on this noob.

author: Psi
author_rank: Super Contributor
timestamp: July 19, 2013, 02:07:52 am
content: Digikey list the mating products at the bottom of the page for most parts.Otherwise you have to go look up the manufactures website and get the mating part number.

author: apelly
author_rank: Unknown
timestamp: July 19, 2013, 02:11:16 am
content: Quote from: Psi on July 19, 2013, 02:07:52 amUseful! Thanks.

author: mariush
author_rank: Super Contributor
timestamp: July 19, 2013, 11:59:08 am
content: 1. Not exactly sure what chamfered means but below you have two zip files, they contain pages i saved a while ago with reference to pc connectors (i didn't want to make them pdf because links would be gone then without doing some extra work)Basically Molex Mini-Fit Jr. for atx connector and pci express ( series 5557) , Molex 8981 series for ide hard drive connectors, molex 67581 for sata , molex kk for cpu fan connectors.There's also AMP Val-U-Lok for cheaper atx and pci express metal pins and i'm sure they have for ide hdd style connectors as well but i didn't bother to look2. No clue about that format3. Those are referenced as "Dupont" connectors but I couldn't find them under that name, dupont afaik was bought by some other company.I found them sold by farnell very cheap under their brand Multicomp, their 2226B series, for example this is the 2x5 one :http://uk.farnell.com/multicomp/2226b-10/crimp-housing-2-row-10way/dp/1593522(don't go by the pictures, they don't always match the item, as in they show a 2x2 housing for 2x10 etc)For the pins inside I used these but there's probably other manufacturers making them :http://uk.farnell.com/jsp/search/productdetail.jsp?SKU=10222204. those are super easy to find on both digikey, farnell/newark/mouser etc .. spade connectors or something like that.I've bought an Engineer PA-20 after someone recommended it here and it works fine for both 1 and 2. May not work well with the ones in 4, and will probably not work at all if those connectors have fully round end (the kind the tool compresses to keep the cable locked)

author: Spunky
author_rank: Regular Contributor
timestamp: July 22, 2013, 02:57:27 am
content: For the spade connectors get the standard automotive type with the crimp bucket, they're way easier than those ones with the fold over edges.

author: WarSim
author_rank: Frequent Contributor
timestamp: July 22, 2013, 06:21:42 am
content: Quote from: apelly on July 19, 2013, 02:00:34 amFor the others chamfer is a mechanical engineering term. I believe in this case the 45deg angle key way on the larger computer device power connectors. It is common for IT people to incorrectly refer to these connectors by their connector class name.