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A little help please - Flat Flex Cables

Posted: 02 Apr 2025 14:13
by rubber_jonnie
Hi all.

I'm trying to get a 10 or 20 cm FFC and the pitch is as follows:

IMG20250402112227.jpg

To me the contacts look like 1mm with a pitch of somewhere between 1 and 1.5mm. If anybody can advise on the pitch I'd be grateful as I may be missing something and every one I've ordered has had the wrong contact size and pitch despite what the details said.

Re: A little help please - Flat Flex Cables

Posted: 02 Apr 2025 15:07
by DoG
I would guess 1,27mm which is half of 2,54mm and both are standard. Otherwise I would use a caliper to measure.

EDIT: But searching seems to suggest that normal FFC pitch is 1,25mm.

Re: A little help please - Flat Flex Cables

Posted: 02 Apr 2025 16:43
by rubber_jonnie
DoG wrote: 02 Apr 2025 15:07 I would guess 1,27mm which is half of 2,54mm and both are standard. Otherwise I would use a caliper to measure.

EDIT: But searching seems to suggest that normal FFC pitch is 1,25mm.
Thanks

Re: A little help please - Flat Flex Cables

Posted: 02 Apr 2025 17:24
by DoG
Hmm...

According to this your cable is something special?

Re: A little help please - Flat Flex Cables

Posted: 02 Apr 2025 18:24
by rubber_jonnie
DoG wrote: 02 Apr 2025 17:24 Hmm...

According to this your cable is something special?
Wouldn't surprise me tbh. It's a laptop keyboard ribbon and very annoyingly dead.

Re: A little help please - Flat Flex Cables

Posted: 03 Apr 2025 10:11
by alexh

Re: A little help please - Flat Flex Cables

Posted: 03 Apr 2025 10:32
by Badwolf
Looks like 1.25mm pitch to me. I think @alexh has it right.

BW

Re: A little help please - Flat Flex Cables

Posted: 03 Apr 2025 10:58
by rubber_jonnie
alexh wrote: 03 Apr 2025 10:11 Something like this ?

https://www.digikey.co.uk/en/products/d ... 69/4427997
Thanks, I think that's correct in terms of pitch, but 8" is way too long and my other concern is the digi-key pricing for shipping, which in this case is £12!!!

Food for thought though, thanks.

BTW I broke out the calipers and it is 1.25mm pitch with 1mm contacts.

Re: A little help please - Flat Flex Cables

Posted: 03 Apr 2025 10:58
by rubber_jonnie
Badwolf wrote: 03 Apr 2025 10:32 Looks like 1.25mm pitch to me. I think @alexh has it right.

BW
I agree. Off on a cable hunt.

Re: A little help please - Flat Flex Cables

Posted: 03 Apr 2025 11:47
by rubber_jonnie
OK, I found some possible candidates at AliExpress with the correct pitch and pin count, so fingers crossed!