2 layers100 × 100 mm

Boards in 1 GitHub repository, designed in KiCad, that use the RB-0512D by RECOM Power (12V 1W 1kV 2 4.5V~5.5V 42mA 82% SIP,19.7x6mm Isolated Power Modules ROHS). See how each wires it, with its parts, size, README and files; the RB-0512D’s symbol, footprint and pinout are on its own page.
