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Add Lodestone VTM inductor mount footprints

evanshultz requested to merge github/fork/evanshultz/lodestone-vtm into master

http://www.lodestonepacific.com/CatKpdf/VTM_Series.pdf

I've only added the first one because I'd like feedback before I continue.

  1. I made up the L_Mount prefix since this is a mount used for inductors. Is there a better convention?
  2. I left off a suffix on the PN because the inductor winding can be the leads (-0 suffix) or the pins can be installed in the base (-4 suffix). Either way, the holes are in the location. But since the lead diameter is only known on the mount with leads, should I make it specific to the -4 version?
  3. The pin locations are because these are almost always wound from corner to corner so the physical part can be installed either way and it still works. This means pin 1 and 2 need to be at opposite corners for our standard inductor symbol to work. It's unlike the pinout in the datasheet but I think this is best.
  4. Is this the right way to represent the pins since they do need to be visible to the PCB designer but they don't touch the PCB and so small parts can fit under them?
  5. Similarly, I believe the courtyard should not envelop the pins.

image

If I can get the above answered I'll move this to center on pin 1 and then add the other 3 PNs. Thanks!

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