The KYX KBD160001220 crystal with HC-49S-SMD-2P is a quartz resonator that utilizes a special packaging configuration that is RoHS compliant. It has a frequency range between 16.000MHz and 12.200MHz, and is built with an SMD-2P footprint. It also has a stability range of ±20ppb, and a temperature range of -40ºC to 85ºC. This part is suitable for applications such as data communication systems, telecoms, and automation.