The S720000202040 with SMD (Surface Mount Device) Crystal Resonator manufactured by JGHC is a two-pin component designed for use in frequency control. This type of component is commonly used to maintain a constant frequency in a wide range of electronic applications, such as CPUs, PLLs, and other timing applications. Its high-precision and low-jitter performance allows it to be used in precision oscillators, frequency synthesizers, and other timekeeping systems. The component is RoHS (Restriction of Hazardous Substances) compliant, meaning that it does not contain any potentially hazardous substances in its construction.