Dual header pad layout

plus can anyone point me to a definitive guide just a page or 2 that illustrates the common SMD IC packages WITH their pad layouts (and maybe some other common parts as well) I'm not having any luck finding something that says it all in ONE place.

Just go ahead and make a footprint in exact accordance with the connector manufacturer's recommendations. Don't screw around, do it right. You will have to do this many times in the future.

Some EDA programs have 'wizards' that speed up creating such patterns.

--sp

These days the manufacturer usually includes recommended pad layout for connectors. Check the data sheet/mechanical drawing.

Most layout packages make creating such a footprint very easy. SMD connectors usually turn the pins outward from the center, so the pads will be much wider than the body of the connector and wider than the same pad layout in through hole mount.

If it were "just a page or two", it wouldn't be definitive. It wouldn't even be "vague"!

The definitive guide is IPC-7351A, which is available freely (more or less), do a search. More importantly, the IPC provides calculations for different pin/pad shapes and types of solder joints, so that you can create a reasonable footprint for almost any part imaginable.

In general, library footprints are total crap. Always check against the manufacturer's data at least, but preferably, make it IPC compliant as well. (In general, manufacturers' data isn't even very good, either.)

Tim

-- Seven Transistor Labs, LLC Electrical Eng>> Spent an hour getting nothing so time to ask --

We use these FCI in a 16 pin configuration and just followed the pad size in the drawing. No problems.

Have a look at I have not found your connector there, but you will find many symbols and footprints for different CAD packages, as well as prices and availability.

Yeah ok. I'll just copy the footprint and remember to do that. Newbie at SMD and your right, best to have it exact and get it done.