3 Pin circular power connector ID with semicircular split shield - Page 1
Forum section: electronics / repair

author: DaJMasta
author_rank: Super Contributor
timestamp: October 29, 2020, 09:04:06 pm
content: Looking for a mating connector for the power connector pictured. Three pins, circular, with a strange split metal shield around the center core that I presume is the keying mechanism with the mating connector. The opening is 9mm, the center core (plastic only) is 6mm, and each pin hole is 2mm (the contact will be smaller, this was again measuring the plastic not including the contacts).My first guess of vendor would be Amphenol, since another larger connector on the backplate is an Amphenol Aerospace connector, and I assume it's a little obscure and likely expensive, but I'd love to find a match for it and from the search terms I know to use only narrows it down to like 40 pages of products, many without images, on digikey. Even just an idea of what series it belongs to would be great!

author: Cerebus
author_rank: Super Contributor
timestamp: October 29, 2020, 09:41:42 pm
content: That looks like a Lemo connector. Not from any specific knowledge I have of a specific Lemo connector, but just from the general style of it.

author: Audiorepair
author_rank: Frequent Contributor
timestamp: October 29, 2020, 09:49:24 pm
content: https://www.camdenboss.com/camden-boss/ccb2s103-circular-connector-socket%2C-3-pole-fixed-panel-mounting-socket-connector/c-23/p-16219https://uk.farnell.com/camdenboss/ccb2s1-03/circular-conn-rcpt-3pos-panel/dp/2747113

author: Yansi
author_rank: Super Contributor
timestamp: October 29, 2020, 10:28:59 pm
content: These connectors have been originally made I think by Lemo, now a lot others. Fischer, Aliexpress is also full of them.

author: DaJMasta
author_rank: Super Contributor
timestamp: October 29, 2020, 11:10:49 pm
content: Appreciated! Looks like it's a CCA2P1 3 pin connector and the mating plug is a CCA3P1 - $30 is the cheapest I've seen and not available in the US.... well that's to be expected I suppose.

author: Audiorepair
author_rank: Frequent Contributor
timestamp: October 29, 2020, 11:13:10 pm
content: If its feasible you could change both plug and socket into something else available.

author: Cerebus
author_rank: Super Contributor
timestamp: October 29, 2020, 11:59:46 pm
content: Quote from: Audiorepair on October 29, 2020, 09:49:24 pmGood catch!Quote from: Yansi on October 29, 2020, 10:28:59 pmYeah, it looked like that to me, but I don't know my way around them well enough to be sure.Quote from: DaJMasta on October 29, 2020, 11:10:49 pmIf thereisa Lemo equivalent you ought to be able to source it. The operative part is "if", that's conjecture on behalf of Yansi and myself at the moment.If you can, you won't like the price - Lemo is the connector world's way of saying "If Sir needs to ask the price...".

author: Yansi
author_rank: Super Contributor
timestamp: October 30, 2020, 08:04:18 am
content: Quote from: Cerebus on October 29, 2020, 11:59:46 pmNot really, if you buy them from the dark Asian corners of the interwebz.By the way, we have already sampled a bunch of those "Chinese LEMOs" and they were all decent quality, I mean, they are 100% usable. You won't find much difference. And if it is just connector you need to match, than I'd go for a Chinese one, if Sir doesn't want to pay premium.

author: DaJMasta
author_rank: Super Contributor
timestamp: November 05, 2020, 06:17:00 am
content: RS shipped pretty quickly, so I got the connector today........ and it's a little too small.Apparently the measurement for the barrel they list in the specifications isn't for the plug part, it's for the whole assembly. Not only that, the size up is only a single millimeter bigger..... pretty poor product differentiation to me.... Also the 102 series sized connector is LARGER than the 103 series.A second is on order, though at least it's cheaper than the first

author: Yansi
author_rank: Super Contributor
timestamp: November 05, 2020, 11:58:27 am
content: There is a whole series of these connectors. They all look the same, but differ in size. You did not do your homework right then.

author: DaJMasta
author_rank: Super Contributor
timestamp: November 05, 2020, 08:51:32 pm
content: Well there's only two CamdenBoss CCA series connectors with three contacts, and the rundown of specs on the main page gave me the dimension I thought I was looking for, so I got it. I still think it's poor practice to advertise only the outer shell size for the connector (not the plug size) and to make your only offerings almost the same size with no other distinguishing features, but it's certainly my fault in the end.https://www.camdenboss.com/camden-boss/cca2p1a03-circular-connector-plug%2c-3-pole-cable-plug-connector/c-23/p-16206

author: Yansi
author_rank: Super Contributor
timestamp: November 06, 2020, 12:02:49 am
content: It's not about the blame, but about tons of types and sub-types of these.Not sure for which equipment you need the plug, guessing the manual for that instrument did not help to figure out what type of connector it is.

author: DaJMasta
author_rank: Super Contributor
timestamp: November 06, 2020, 09:21:52 am
content: Better yet, the manuals I have mention the unit I have but aren't for it, and none of the power supplies for any of them are specified or pictured for me to tell from! Since the device is export controlled and from a company that was acquired in the early 2000s, there's basically nothing about it floating around on the net, though I was able to get the adjacent documentation by asking and confirming my location.I was a millimeter off of the bore of the first attempt, though, and the shape and features are a dead match, so I am at least surer of the second attempt... I guess I'll see! At least for being shipped in from the UK, RS's shipping price and time was quite reasonable.