What kind of board to board connector is this (Series, part #)?

[nexus]

Hi all,

Working on a project where I need to design an adapter/riser to bring a PCB out of the mainframe so I can probe it during operation. If anyone is curious, this is inside of an E8257 series signal generator.

There are two main connectors that plug in to the motherboard - they are both Amphenol (AMP) branded parts. They appear to be from the same series; one has 130 positions, the other has 50. They are right angle, with 4 rows of half-pitch staggered pins soldering into the PCB. No keys or slots.

I've tried searching all the usual websites (Digikey, Mouser) for this with no luck. The closest thing I found on the Amphenol website was their PHEN/PHEC series of connectors, but those are different as they have keying features and only go up to 120 positions. I've also see the term "Centronics" connector used to describe this style but no luck searching by that keyword yet.

Thanks

[TimFox]

To add to the confusion, "AMP" and "Amphenol" are different companies, although Amphenol has bought some lines from AMP.

[nexus]

To add to the confusion, "AMP" and "Amphenol" are different companies, although Amphenol has bought some lines from AMP.

That was helpful, I forgot that TE makes an "AMP" line of connectors which has nothing to do with Amphenol.

I looked around on TE and found this part #: https://www.te.com/usa-en/product-4-5175474-2.html

That might be it..

edit: which means I'm screwed because it is not in stock anywhere, even the scalper websites!

[reboots]

AMP Champ .050 is likely correct. The larger .085 variant is often called a "Centronics" connector. "Micro ribbon connector" is another term for the family.

"Mini D Ribbon" (MDR) appears to be a compatible .050 pitch series. Here is a 3M 50-pin MDR to try:

https://www.digikey.com/en/products/detail/3m/10150-3000PE/773867

If you can locate 68-pin versions, and you're feeling really desperate, you could carefully cut up two of those to frankenstein together a 130-pin connector. I mean, really desperate.

[nexus]

AMP Champ .050 is likely correct. The larger .085 variant is often called a "Centronics" connector. "Micro ribbon connector" is another term for the family.

"Mini D Ribbon" (MDR) appears to be a compatible .050 pitch series. Here is a 3M 50-pin MDR to try:

https://www.digikey.com/en/products/detail/3m/10150-3000PE/773867

If you can locate 68-pin versions, and you're feeling really desperate, you could carefully cut up two of those to frankenstein together a 130-pin connector. I mean, really desperate.

Thanks, I'll add that 3M MDR to my next order. The 50 pos Champ .050 seems to be available, the 130 pos is of course super obscure. I'll email TE and see if they have any samples. I only need one of each (plug and receptacle).

Can't think of another product where this connector is used besides PSG signal generators. Maybe ESGs? If I can find scrap boards that would be the other route.