The ECS-240-10-33B-CKY-TR3 is an ultra‑miniature, high‑precision surface‑mount passive crystal (SMD Crystal) from ECS Inc.'s ECS‑33B series. It is positioned as a core component that provides a precise frequency reference for modern wireless communication and portable devices, aiming to deliver stable and reliable clock signals for extremely space‑constrained equipment with its ultra‑small footprint and low aging rate.








