6 layers64.8 × 69.9 mm

Boards in 4 GitHub repositories, designed in KiCad, that use the ESD122DMXR by Texas Instruments (-40℃~+125℃ 0.2pF 10nA 2 2.5A@8/20us 20W@8/20us 3.6V 7.9V 8.4V Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 X2-SON-3(0.6x1) ESD and Surge Protection (TVS/ESD) ROHS). See how each wires it, with its parts, size, README and files; the ESD122DMXR’s symbol, footprint and pinout are on its own page.

NicholasKorth/Slim-Sleep-Tracker
A low-profile wrist wearable that measures motion, optical heart rate and SpO2 and streams them over Bluetooth LE to a PC visualizer.


tracelabs-pcb/pocketssd-21
Compact USB 3.2 Gen2 to NVMe M.2 bridge PCB — JMS583, 6-layer