The S3224000121060 with SMD Crystal Resonators 24MHz ±10ppm SMD-3225_4P RoHS is an electronic part manufactured by JGHC. It is an SMD Crystal Resonator, meaning it is designed to resonate at a specific frequency, 24MHz ± 10ppm in this case. As it is a Surface Mount Device (SMD), it is designed to be mounted directly onto the surface of a circuit board, and its components are smaller and denser than those of a through-hole device. This Crystal Resonator is RoHS compliant, meaning it does not contain any hazardous substances. It is a 4 pin device, meaning it requires four connections, and the package size is 3225.