The Citizen HC-49/U-S3686400ABJB is a high-quality 3.6864 MHz quartz crystal designed for precision timing and frequency control. Encased in a robust HC-49/U package, this crystal offers excellent stability and reliability across a wide range of operating conditions. It is commonly used in microcontrollers, communication devices, and other electronic circuits requiring accurate clock signals. Supreme Components International is an authorised distributor of Citizen electronic components, ensuring that you receive a genuine product with full manufacturer support. This crystal is ideal for both prototyping and mass production. Trust Supreme Components International for all your component needs.