Footprint without datasheet

[hitech95]

Hi,
I have to create the footprint of a USB connctor.
https://it.aliexpress.com/item/1pcs-USB-3-0-jack-fit-for-Acer-Chromebook-C720-C720-2848-CB5-571-C9DH-ZRF/32785466540.html?spm=a2g0s.8937460.0.0.398b2e0exsoqft
Unfortunatly the supplier don't have the Datasheet and it's a custom part made for Acer by someone.

I have the photos and a PCB with the same connector installed.
How can I create a footprint for it?

Does you have any suggestions?

Have a nice day,
hitech95

[MarkF]

You have the actual part.
Measure it.

[T3sl4co1l]

Got a micrometer or at least vernier calipers?  Or an optical measuring table, but those are probably too special..

I would suggest copying what's on the existing board.  Desolder and clean the footprint, then measure it with whatever instruments and gauges are appropriate.

That may be more difficult to do than expected. Perhaps you should consider a new, reputable brand connector that comes with datasheet?  Since you're building new anyway (so it seems), there doesn't seem to be any point at all in using an exact match to the original.

Tim

[wraper]

Why would you need a footprint for this particular part? As said before, measure it. However it would be much smarter to choose part which has the same dimensions as a part which has a proper drawing available. Even if you want to use some cheap crap from Aliexpress anyway.

[hitech95]

You have the actual part.
Measure it.

I got a draft of the dimensions from the connector, I thought someone had a trick to be sure of the size and pads placing.
The connector it's soldered to my notebook motherboard!

Why would you need a footprint for this particular part? As said before, measure it. However it would be much smarter to choose part which has the same dimensions as a part which has a proper drawing available. Even if you want to use some cheap crap from Aliexpress anyway.

Perhaps you should consider a new, reputable brand connector that comes with datasheet?  Since you're building new anyway (so it seems), there doesn't seem to be any point at all in using an exact match to the original.

It's not why it's cheaper but due to the fact that is aligned with my notebook chassi!
I've looked for new parts but this connector is placed at the same height of the PCB and its perfectly aligned with the hole in the chassi. (The pcb is cutted and the connector fits inside the "hole")

Got a micrometer or at least vernier calipers?

Yup i've got the draft but I would to be sure of the actual dimension ... i'm also waiting for the part to arrive from china...

I would suggest copying what's on the existing board.  Desolder and clean the footprint, then measure it with whatever instruments and gauges are appropriate.

Part of the problem is actually this, the connector is soldered to the motherboard of the PC I use each day and my desoldering skills are not that good. (Expecially with plastic connectors)

BTW, I'm working on this:
https://www.eevblog.com/forum/projects/adding-usb-type-c-with-pd-(tps65987d)-to-a-chromebook-advices-for-usb3-pcie/