The HC-49/U-S20000000ABKB crystal, manufactured by Citizen, is a crucial component for frequency control in electronic circuits. Operating at 20 MHz, this quartz crystal in the HC-49/U package provides excellent stability and accuracy. Supreme Components International is an authorised distributor of Citizen components, ensuring you receive genuine and reliable products. This crystal is suitable for a wide range of applications, including microcontrollers, communication devices, and timing circuits. Its robust design and precise frequency make it a dependable choice for demanding applications. Trust Supreme Components International for all your electronic component needs.