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Rework USBLC6-2 and -4 ESD protectors

John Beard requested to merge johnbeard/kicad-symbols:rework_usblc6 into master

A different attempt at reworking the USBLC6-2 ESD protectors, also including the -4 variant. See also !4070 (closed) and !4085 (closed).

Before:

2023-12-27_184027_654x465_screenshot.png 2023-12-27_184036_1032x748_screenshot.png

After:

2023-12-27_183524_656x516_screenshot.png 2023-12-27_183532_1169x835_screenshot.png

-2

The main differences:

  • substantially smaller
  • straight-through wiring

This allows quite dense layout (yes, I know it's actually not a USB3-compatible part!)

2023-12-27_182946_805x541_screenshot.png

The diodes are small, but they're quire legible even when printed physically:

image.png

-4

The -4 is also reworked to allow same-side wiring (though it's not a wire-through part):

2023-12-27_182941_585x461_screenshot.png

or user may choose this way:

2023-12-27_183400_472x501_screenshot.png

KLC violations

  • S3.1 centering - there's an even number of pins at 0.1" spacing
  • S4.4 GND is passive - seems normal for ESD arrays

Parts changed

  • USBLC6-2P6 - reworked
    • USBLC6-2SC6 - made a derivative - has same pinning as -2P6
  • USBLC6-4SC6 - reworked

Merge request reports