This crystal oscillator is a CM4019M20010T8188123, manufactured by JWT. It has 19.2MHz frequency, 10pF load capacitance, and a series impedance of 60O. Its temperature stability is ±10ppm at 25°C and ±30ppm from -40°C to 85°C. It is built on a SMD2520-4P package and meets RoHS requirements.