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Add Kemet EE2/EC2 Relays

Ed Peguillan III requested to merge github/fork/yankee14/kemet_Ex2_series_mechanical_relays into master

This PR is to add a set of mechanical relays by Kemet.

I made use of the Lattice2 workbench by DeepSOIC to do the pin arrays and attachments.

Datasheet: https://content.kemet.com/datasheets/KEM_R7002_EC2_EE2.pdf#page=2&zoom=auto,-267,730

Symbol: kicad-symbols!2631 (merged)

Footprint: kicad-footprints!2230 (merged)

Package: MISSING

There are 4 relevant models:

  1. THT for non-latching and single coil, missing 2 columns of pins
  2. THT for double coil latching, missing 1 column of pins
  3. SMD for non-latching and single coil, missing 2 columns of pins
  4. SMD for double coil latching, missing 1 column of pins

The two SMD models have additional variations regarding high density footprints, increased solder strength, or breakdown voltage improvement.

THT-NU and THT-SNU image

THT-TNU image

SMD-NU and SMD-SNU image

SMD-TNU image

SMD-NUH and SMD-SNUH image

SMD-TNUH image

SMD-NUX and SMD-SNUX and SMD-NKX image

SMD-TNUX image

I'm not really sure how to use StepUp to properly fine tune these, sorry about that.

Edited by Martin Sotirov

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