2 layers112.7 × 100 mm

Boards in 1 GitHub repository, designed in KiCad, that use the LM2903P by Texas Instruments (-40℃~+125℃ 1.3us 1.3us 2 25nA 2V~36V 2mV 36V 5nA 800uA TTL、CMOS PDIP-8 Comparators ROHS). See how each wires it, with its parts, size, README and files; the LM2903P’s symbol, footprint and pinout are on its own page.
