This SMD-3225_4P crystal resonator from JGHC is a type S3240000121040 component with a frequency of 40MHz ±10ppm. It is an optimized electronic part to use for resonating frequency sensitive applications, such as generating a time-base reference signal for a microprocessor or other circuitry. It is specifically designed to be as small and light as possible, featuring a 3225_4P surface mount design for use in compact or limited space applications. Additionally, this component is RoHS compliant, ensuring it is free from hazardous materials harmful to the environment.