4 layers80 × 60 mm

Boards in 1 GitHub repository, designed in KiCad, that use the CMBT2222A-T by RECTRON (100 10nA 300MHz 300mV 300mW 40V 600mA NPN SOT-23 Bipolar (BJT) ROHS). See how each wires it, with its parts, size, README and files; the CMBT2222A-T’s symbol, footprint and pinout are on its own page.
