The 5S0-0400A2020-00 is a Dual Inline Package (DIP) Crystal Resonator 49S RoHS manufactured by XTY. It is a high-frequency quartz crystal unit designed for use in applications such as high-performance oscillators and filters. The resonator has 49 parallel plate element pairs as opposed to other designs which have only one or two pairs. This ensures superior frequency stability and accuracy compared to standard crystal resonators. Furthermore, the RoHS (Restriction of Hazardous Substances) compliant resonator helps to reduce environmental waste. The 5S0-0400A2020-00 is suitable for a wide range of applications, including consumer electronics, industrial control, and automotive systems.