The 2NM27120C33YC is an SMD Oscillator (XO), manufactured by SJK, that conforms to RoHS (Restriction of Hazardous Substances) standards. It features an SMD-2520_4P footprint, meaning that it is a 2520 size package with 4 pins, which is generally used for surface mount applications. This oscillator has a frequency range of 27.120 ±20 ppm, with temperatures from -10 °C to 70 °C, and a stability of ±20 ppm. It is a TTL, CMOS compatible oscillator with a low power consumption of 3.3V (150 mW Maximum). This device is also available with a HCMOS compatible version with a supply voltage of 5V (100 mW Max).