The HC-49/U-S29491200BBIB is a 12MHz Quartz Crystal manufactured by CITIZEN. Supreme Components International is an authorised distributor of CITIZEN electronic components, ensuring you receive genuine and reliable parts. This crystal is designed for applications requiring precise and stable frequency generation. Its HC-49/U package provides a robust and industry-standard form factor for easy integration into various circuit designs. Quartz crystals are essential components in oscillators, microcontrollers, and communication devices. The 12MHz frequency is commonly used in a wide range of electronic systems. Choose Supreme Components International for your CITIZEN crystal needs and benefit from our commitment to quality and service. We guarantee the authenticity and performance of our products.