Please help to identify a connector (cable assembly) - Page 1
Forum section: electronics / projects

author: analogRF
author_rank: Super Contributor
timestamp: May 24, 2022, 02:05:48 am
content: I have posted this on Repair forum with no response so I thought this forum was the right place.The shown cable assembly (2x20 pins) is used in Keysight Fieldfox to connect the front panel to the main board.It is way too short (1.5") such that even re-assembly by itself is a hard job.Does anybody know what type of connector this is?I would like to buy a longer cable assembly that fits so that it would let me to open the deviceand still be able turn it on.Yes, I know one dirty way is to cut all 40 wires and solder extension wires to them but I want to avoid that as much as possibleI tried my best on Digikey but could not find anything similar in size that fits into the male on board connectorsThe "fancy" part in the middle of the female connector is misleading because the male connector is just made of simple pinsthat go into the holes. so just having the right size would be enough, does not need to match exactly the shape.any help is highly appreciated

author: ConKbot
author_rank: Super Contributor
timestamp: May 24, 2022, 03:54:35 pm
content: Potentially a Molex Pico-clasp.https://www.molex.com/molex/products/family/picoclasp?parentKey=wire_to_board_connectorsPitch is right, general shape is right, but eyeball the details to make sure it's not a competitors very similar connector.

author: analogRF
author_rank: Super Contributor
timestamp: May 24, 2022, 04:01:54 pm
content: Quote from: ConKbot on May 24, 2022, 03:54:35 pmYes I found it late last night, the female connector housing is P/N 501189-4010and the crimp pins are 501193-8000 (gold plated)and the male connector is 501190 IIRCno ready made cable assembly, so need to crimp 80 wires....I have ordered the parts from mouserbut I dont have the proper crimper....either I will solder the wires to the pins or just cut the wires on the current cable assembly and extend them..

author: tooki
author_rank: Super Contributor
timestamp: May 24, 2022, 08:11:32 pm
content: You know you can buy pre-crimpedwiresand assemble them into cables yourself, right? E.g.https://www.digikey.ch/short/f0mjwvdh

author: analogRF
author_rank: Super Contributor
timestamp: May 24, 2022, 08:31:59 pm
content: yes but as it turns out those pre-crimped assemblies listed on digikey or mouser do not fit this particular housing. In fact i could not find anu pre-crimped wires for this connector housing even on molex website.not to mention that they are not in stock anyway

author: tooki
author_rank: Super Contributor
timestamp: May 25, 2022, 01:14:07 am
content: Quote from: analogRF on May 24, 2022, 08:31:59 pmWhat makes you think all this? I don’t see anything that would indicate this to be the case. The single and dual row ones take the same contacts. (The two part numbers you see are for tin and gold versions. For whatever reason, they list only the gold contacts for dual row connectors.) If you look at the drawings for the gold and tin contacts, the dimensions are absolutely identical, so it stands to reason they’re interchangeable. Moreover, the drawings refer to each other for the other plating.They don’t make the pre-crimped wires with gold contacts any more, but they do sell the tin plated ones, and they’re in stock…

author: vk6zgo
author_rank: Super Contributor
timestamp: May 25, 2022, 01:46:53 am
content: Quote from: tooki on May 24, 2022, 08:11:32 pmOff topic, but I have even seen pre crimped wires, & the connector bodies to match, advertised for DB9 connectors. I tried to convince a previous employer that they would save a lot of man-hours, but they refused to believe they existed!