2 layers48 × 48 mm

Boards in 1 GitHub repository, designed in KiCad, that use the ZY12 by DIOTEC (-50℃~+150℃ 1 Independent 11.4V~12.7V 12V 1uA@7V 2W ±5% DO-41 Zener Diodes ROHS). See how each wires it, with its parts, size, README and files; the ZY12’s symbol, footprint and pinout are on its own page.
