The CN4048M00012T8188021 is a surface mount crystal oscillator manufactured by JWT. The oscillator has a frequency of 48MHz, a capacitance of 12pF, a nominal series resistance rate of 30O, a stability of ±10ppm, a tolerance of ±20ppm and a temperature range of -40? to +85?. The crystal is ROHS compliant. It features a SMD2016-4P package.