Electronics > Projects, Designs, and Technical Stuff
Stackable 2.54mm headers that don't suck
jpanhalt:
I mentioned the Berg connector. Here is a glossy description: https://www.connectortips.com/breakthrough-contact-design-spawned-500m-connector-company/
It is made in both a crimpable version for wire to wire or wire to board and a pre-loaded version for board to board. It is very dependable and is the standard for many (most) model servo connectors. There are lots of imitations. Model applications are generally limited to 3 contacts. I routinely use 6-contact wire to wire connectors with Berg contacts.
Digikey carries it, but it seems Mouser has a better stock. Unfortunately, the original Berg company underwent some acquisitions (I would sell out my namesake company for $500 million too). It is currently owned by FCI/Amphenol. Unfortunately as miniaturization keeps getting smaller, the original Berg is too big. Amphenol has connectors with various plays on the name Berg and the datasheets refer to a spring, so I suspect they are similar, but perhaps not identical.
To me, the essential part is the spring contact. Other versions I mentioned also have springiness.
Although it is getting harder to find, if you are interested in 2.54 mm, it is where I would go. For 2 mm, as mentioned, I go to Samtec.
danie1:
That Berg glossy is pretty cool, looks like that would give great contact.
I could actually convert to 2.0mm in the next version to use the Samtec tiger eye contacts; I went for 2.54 purely because I assumed it would be easy to find stackable headers thanks to arduino et al, a slightly more compressed connector would make the layout easier actually as long as I can still squeeze a trace between the pins.
Buriedcode:
--- Quote from: Lomax on June 13, 2020, 12:17:06 pm ---I made similar observations a while back, and eventually found Toby Electronics who sell Samtec and Valcon 2.54mm headers and sockets.
--- End quote ---
I'll second Toby. Only used their Samtec connectors but never had issues with them, and the connectors were always top notch. Their selection is pretty impressive, especially for lower profile "standard" connectors. They also allow for small quantity, which is great when prototyping.
westfw:
Samtec SSQ series, with the -3 (stacking) or -4 (tall stacking) "lead style"https://www.samtec.com/products/ssqDon't get the SSW option; those leads are much too WIDE to fit in a socket for 0.025in posts.
Lomax:
--- Quote from: danie1 on June 13, 2020, 01:07:45 pm ---In your thread you said you ordered a selection from them, were there any favorites/duds?
--- End quote ---
Nope, all good. These were the female stacking headers I bought, in 2x20 and 2x13. I also bought male stacking headers, some extra tall male headers (which have proved very handy), and a few other bits & bobs. Toby have a great catalogue of rare and useful board-to-board hardware, including a huge variety of PCB spacers, which I use a ton of. For some reason these tend to be ridiculously expensive elsewhere.
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