The HC-49/U-S25000000AMJB is a high-quality 25 MHz Quartz Crystal manufactured by Citizen. Supreme Components International is an authorised distributor of Citizen electronic components, ensuring you receive a genuine and reliable product. This crystal is housed in the HC-49/U package, a standard and widely used form factor. Quartz crystals are essential components in electronic circuits, providing stable and accurate frequency references for microprocessors, oscillators, and other timing-critical applications. The HC-49/U-S25000000AMJB offers excellent frequency stability and low aging characteristics. Trust Supreme Components International for all your Citizen component needs.