2 layers50 × 40 mm

Boards in 1 GitHub repository, designed in KiCad, that use the PR39MF21NSZ by Sharp Microelectronics (DIP-8 Solid State Relays (Triac Output)). See how each wires it, with its parts, size, README and files; the PR39MF21NSZ’s symbol, footprint and pinout are on its own page.
