The Citizen HC-49/U-S3686400BBIB is a high-performance 3.6864 MHz Quartz Crystal designed for a wide range of electronic applications. Encased in a robust HC-49/U package, this crystal provides excellent frequency stability and reliability. It is suitable for use in microcontrollers, communication devices, and other circuits requiring a precise timing source. As an authorized distributor of Citizen components, Supreme Components International guarantees the authenticity and quality of this crystal. Choose the HC-49/U-S3686400BBIB for dependable performance in your critical applications. Benefit from consistent oscillation and long-term stability with this Citizen crystal. Supreme Components International provides full support and documentation for this product.