Connector suggestion please - Page 1
Forum section: electronics / projects

author: Gall
author_rank: Frequent Contributor
timestamp: March 15, 2019, 11:25:39 pm
content: Hi all,we are currently repairing a 1970s scanning electron microscope. Among others we have a damaged 62-pin connector marked "TY 517 62 11 MO" manufactured by Tesla (Czechoslovakia). Since we found no modern replacement, we decided to replace both the plug and the receptacle. (It is still possible to buy the original NOS, but since the part is hard to get we'd rather prefer something else.) The 62-pin connector is actually used as a 16-pin one with pins in parallel with the actual current per each of 16 pin groups being about 4-5 A.Question: is there any connector which would fit? Dimensions and mounting holes are exactly the same as the ones of standard 31-pin DIN 41617 connector. The PCB will be redesigned using modern parts so only the receptacle matters as it has to be mounted into an existing frame. The current PCB is slightly wider than the standard one (105mm instead of 100mm) and is held by the matching PCB guide. The PCB guide has mounting holes for DIN 41617 (about 85mm distance between centers) and is itself mounted with two M3 screws at 105 mm distance. We could replace either connector only or both connector and PCB guide but mounting holes must match. Pin amount must be 16 or more with min. 5A per pin, PCB footprint and width of the PCB (if replacing the guide) don't matter.BTW, among old replacement parts we found a connector (not belonging to the device) looking similar to the DIN 41612 B one but shorter, with exactly the size of DIN 41617. What standard could it be?Any suggestions are welcome.

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: March 16, 2019, 01:27:22 am
content: 1. there are plenty of DIN41617, so use one. The 5 amps are rather a bit too much, I think.It's waay above the nominal for DIN41617, which is 2A.You godownfrom that in serious electronics.So you would need a DIN 41612 Form H (or another variety with contacts larger than 0.64x0.64) anyway.Or you want nice, then the use HE801 series. (Or HE8)The odd connector you saw is probably from Siemens and commercial/not standardized. Other companies, which made DIN41612 made similar ones too.

author: Gall
author_rank: Frequent Contributor
timestamp: March 16, 2019, 02:24:49 am
content: We have DIN 41617 and it's also used at other places of the device. The reason other connector is used here is exactly the current. This particular PCB needs 5A, thus DIN 41617 can't be used. And that's why the original design had that odd connector at this board. The problem is, the non-standard connector uses the same mounting hardware as the DIN 41617 one, and we must fit the new connector in place of the old one.So basically what I'm looking for is some currently manufactured odd connector of the same size as DIN 41617 but capable of 16x5A. Like a "shorter version of DIN 41612 H".DIN 41612 of any form can't be used too due to its size. It's slightly longer and thus does not fit into the original PCB holder. If we use that, we need to replace the holder too. Ok, it's doable, but are there holders of such size?Another problem is, DIN 41612 H usually has 15 contacts while we need 16.Thank you for the suggestion of HE801. The non-standard "Tesla" connector we're talking about is likely to be an Eastern-European clone of something very similar to it, may be even a non-exact copy of some HE8. Unfortunately, none of HE8 series has 85mm distance between mounting holes

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: March 16, 2019, 03:57:14 am
content: Ok, now I see. If I can, I'll look again.

author: Tomorokoshi
author_rank: Super Contributor
timestamp: March 16, 2019, 04:38:54 am
content: Maybe not these, but an adapter panel might get you close:https://www.digikey.com/products/en?keywords=1195-2456-NDhttps://www.digikey.com/products/en?keywords=1195-2466-ND7.5A per contact. 37 pins per connector.

author: Gall
author_rank: Frequent Contributor
timestamp: March 16, 2019, 08:53:11 pm
content: I identified the second odd connector ("DIN 41612"-like of the DIN 41617 size). It's RFT. Not an option too