The S3224000182040D2JB with SMD Crystal Resonators SMD-3225_4P RoHS is a surface-mount device (SMD) that is manufactured by JGHC. It comprises four ceramic resonators that are configured in a 3225 metric package size. It is lead-free and compliant with Restriction of Hazardous Substances (RoHS) guidelines. It has a resonance frequency of 18.204 MHz, and it is designed for use in oscillator circuits. It can be used in a variety of electronic applications, including clocks, radio receivers, and industrial equipment.