Hi Guys, so fairly new to making footprints. So really just wanted to ask whether there were any glaring issues with what I’ve done.
I’m trying to use a part from TE under MPN 1-1469491-2 https://www.te.com/usa-en/product-1-1469491-2.html
snapEDA had a footprint which was done exactly as per datasheet image which isn’t really what you need.
Attached are 4 images. 2D footprint I’ve modified from the snapEDA version, 3D view of it, dimesion diagram from datasheet and a table from the datasheet explaining the rotations.
The reason I am cautious is because of the odd shape. How I made it was to define a standard PTH and then add a second PTH is the correct location with a 0 pad size. From everything I can see it looks good, but with little experience in this specific area I thought I’d see if anyone knew better.
You may want to contact your boardhouse whether they can manufacture that. The small hole is pretty close to the larger hole, so there is a possibility of drill run-off smaller → larger hole.
Thanks I’ll make sure to do that. I know it can be done because I’ve had designs with it done before, but normally had a layout engineer to handle this level of detail, but I take the point that not all PCB houses may be able to. Sounds like they would be the best people to ask whether it can be manufactured as well then.
And I suspect that the two-hole footprint is like that only because it’s easy to create as a footprint. It doesn’t even resemble the shape of the physical part. I guess it would be easier to manufacture by routing, like this (only a freehand drawing to give an idea):
TE do mention you could do the following on the datasheet as an alternative.
But honestly I wouldnt know how to create that in the footprint editor as I want to be a PTH as well.
Everything on edge.cuts within the board will be routed and will be PTH (provided there is copper).
Btw, for JLCPCB (others are similar) the minimum with of a PTH slot is 0.65mm. Fits your requirement of 0.8mm.
I wanted to have a look at those pins and wondered why a cost of EUR 5 would be justified.
The TE site annoyed me with the “standard” cookie garbage, and then pushed me over the edge with another popup for registration or e-mail address. I did not bother to further read the message but closed that site.
Even gold plated pins should not cost more then a few cents.
These are the sort of things that gets used in relatively high end low volume applications where it’s just nice to have good guidepins with decent tolerance and predictable specs. I’d burn more money in engineer-hours trying to replace them with something cheaper than I’d save.
They look familiar, wonder if we’ve used them at work before
