CSTCE CERALOCK® Resonators Murata CSTCE CERALOCK® Resonators are SMD resonators used for general consumer applications, high-speed USB, and automotive functions. These resonators offer a built-in load capacitor that eliminates the need for an external load capacitor. The CSTCE resonators come in a small package and low-profile and provide high-density mounting. These resonators feature a wide temperature range. Murata CSTCE CERALOCK Resonators are available in different variants with standard frequency tolerance for automotive and consumer/industrial applications.