The CF4013M56010T8188034 electronic part is a small crystal oscillator designed by JWT and made with 13.56MHz frequency, 10pF (Pico Farads) capacity, ±10ppm (parts per million) stability, and ±20ppm temperature coefficient. The oscillator is also RoHS (Restriction of Hazardous Substances) compliant and it comes in the shape of an SMT (Surface Mount Technology) encapsulated crystal pre-assembled onto a Tinned Photo-masked board with a size of 3225-4P.