ESD protection

[GeeWizWow]

Just throw one of these closest to usb port for esd prot

https://lcsc.com/product-detail/Diodes-ESD_Nexperia_PRTR5V0U2X-215_PRTR5V0U2X-215_C12333.html

Then tack on a 500ma hold 1a trip polyfuse after the esd chip and the board is protected against most things

So the chain order goes USB -> esd prot chip -> ptc fuse -> mcu cluster
(for vcc)
If there's a static discharge, the esd chip handles it first before blowing up anything else
If there's a substantial overcurrent that isn't enough to trip the esd protection, the ptc fuse kicks in

[GeeWizWow]

ref: https://github.com/ai03-2725/Voyager65/tree/V65LE