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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

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Old 24th Jan 2023, 7:36 pm   #1
TonyDuell
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Default IDC edge connectors

What mean by the 'title' is a connector that can be clamped onto the normal 50-thou-spacing ribbon cable and which wlll fit onto the edge of a PCB making contact with finger traces on the 2 sides. For example a 34 pin one was commonly used in OLD PCs for the 5.25" floppy drive connection.

Within living memory they were available in all the standard sizes, now they seem to have vanished. I could use some 26 pin, 34 pin, and 50 pin ones for various projects, so I am looking for a supplier (not 1 or 2 from somebody's spares box).

Do they still exist anywhere or are they long discontinued?

(For personal reasons, relating to bad experiences in the past, I would rather avoid E-bay and Amazon if at all possible]
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Old 24th Jan 2023, 7:54 pm   #2
Keith956
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Default Re: IDC edge connectors

Do you mean something like this?

https://www.digikey.co.uk/en/product...4-0203/1122547

Think it's for one side of a PCB, not sure if you can get the type that fits on the edge and connects to both sides of the PCB - but I didn't look through all the options!
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Old 24th Jan 2023, 7:56 pm   #3
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Default Re: IDC edge connectors

I've had a look through my collection of ribbon cables and found four 34 way connectors already attached to ribbon cables if they're of any use to you.

I have successfully reused such connectors in the past, or you may be able to use them attached to the cable.
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Old 24th Jan 2023, 7:58 pm   #4
TonyDuell
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Default Re: IDC edge connectors

No, that's what I would call a 'transition connector' I think. Crimps onto the cable and you solder it through-hole to the PCB. Two main types, one has the pins in 2 rows at 0.1" * 0.1" spacing, the other had an odd staggered arrangement.
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Old 24th Jan 2023, 8:02 pm   #5
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Default Re: IDC edge connectors

I'll post a picture a bit later.
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Old 24th Jan 2023, 8:04 pm   #6
TonyDuell
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Default Re: IDC edge connectors

I probably have a few 'on cables' in my own collection of spare ribbon cables, particularly the 34 pin ones. I'll use those if I have to, but I was wonderig if there is a source of new ones still.
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Old 24th Jan 2023, 8:21 pm   #7
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Default Re: IDC edge connectors

I would imagine RS do "Whatever you want" as Status Quo once sang...

https://uk.rs-online.com/web/c/conne...dc-connectors/
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Old 24th Jan 2023, 8:40 pm   #8
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Default Re: IDC edge connectors

I think these are the items under discussion.
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Old 24th Jan 2023, 8:53 pm   #9
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Default Re: IDC edge connectors

Putting "IDC card edge" into the Mouser search gives a few results;

https://www.mouser.co.uk/c/?q=idc%20card%20edge

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Old 25th Jan 2023, 5:30 am   #10
TonyDuell
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Default Re: IDC edge connectors

Quote:
Originally Posted by Station X View Post
I think these are the items under discussion.
That is, indeed, the sort of connector I am looking for a supplier of.
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