STM32H7B3I-EVAL: Cannot find connector for their header pins

[KMew]

Hello,

I admit that I feel like I'm missing something obvious here, but I am using the STM32H7B3I-EVAL evaluation board and they have 0.05" pitch header pins for some of their connectors (CN5/CN6). I am trying to source a single position connector that can connect to their header pins (P/N: FTR-130-53-L-D-LC).

I am looking for something similar to the image below, but 1.27mm (or 0.05") pitch and female.

I want single-position so I can send various GPIO signals to different boards. Is anyone aware of a product that can do this?

[Peter BENSCH]

Sure, there are a lot of them in the internet shops with male-female combinations, e.g. like this one:

Does it help?

Regards

/Peter

[image source: www.cytron.io]

[KMew]

Hello Peter,

Yes, something like this would work perfectly, I just need it to match the pitch of that connector (0.05" pitch). I've found 100's of ones like the picture you provided, but they're all 0.1" (or 2.54mm) pitch. Can you link a specific one by chance?

[Peter BENSCH]

Oh, that's right, I hadn't read correctly and assumed 0.1", sorry.

No, I haven't seen such plugs in 0.05" yet, but maybe someone else in the community?

Good luck!

/Peter

[KMew]

Bumping this.

Is anyone else aware of single-position pins like the picture above that are 0.05" pitch? I need to send those signals externally from the evaluation board and do not currently see another method to do so.

I do find it hard to believe that STM put a connector with no mating product... There must be something.

[Tesla DeLorean]

ST builds their daughter cards with the mating Samtec parts.

Perhaps you can fashion something with some 1.27mm pitch header board. Nothing on eBay or PCBWAY, etc is jumping out, market's a bit niche.

https://schmartboard.com/schmartboard-ez-so-4-56-pins-1-27mm-pitch-2-x-2-grid-202-0004-01/

As I've previously indicated the EVAL boards are not good break-out board designs, and they are very expensive compared to alternative approaches.

[KMew]

For anyone else who has encountered this issue, I found a solution via Digikey.

https://www.digikey.ca/en/products/detail/chip-quik-inc/dr127d254p10f/5978230

I plugged the female portion into the header pins on the evaluation board and then just used regular 2.54mm connector pins for the other side. Each pin is its own trace, so it doesn't interfere with each other.

It's by no means an elegant solution, but if you're in a pinch, it works!