RD11315MA3SI-W is a Through Hole SAW Resonators manufactured by Yangxing. It is RoHS compliant, meaning that it is certified as a safe and environmentally friendly materials in use for electronic products. The Resonator uses a surface acoustic wave (SAW) technique, which is a way to convert mechanical signal into electronic signals and vice versa. This product is designed for frequency stability and can be used to control frequency in wireless communication and improve signal-to-noise ratio. It is capable of providing low power output as low as 15mA, low cost, low temperature coefficient and high frequency stability.