The R322543392MA4SI with SAW Resonators SMD-3225_4P RoHS is a surface mount device (SMD) manufactured by Yangxing. It is a Surface Acoustic Wave (SAW) resonator with a type of SMD-3225_4P, which is designed to be extremely small for use in a variety of applications. This component is RoHS compliant and is typically used in consumer electronics, automotive, medical, or white goods. This SAW resonantor has a center frequency of 33.92MHz and uses second overtone operation which makes it exceptionally stable. It also features a high impedance and good thermal characteristics which make it suitable for a wide range of applications.