The S3226291221040 with SMD Crystal Resonators SMD-3225 RoHS is a surface mount device (SMD) manufactured by JGHC. It is a type of Crystal Resonator that is used to achieve frequency accuracy in oscillator circuits. This resonator is composed of a quartz crystal enclosed in a package with two leads. The package size is 3225, and it is RoHS (Restriction of Hazardous Substances) compliant. This component provides a frequency of 29.1221040 MHz with tight tolerances. It is ideal for applications requiring high frequency accuracy such as radios, smartphones, communication systems, and computers.