The HC-49/U-S3579545ABJB Quartz Crystal Resonator, manufactured by Citizen, is a crucial component for frequency control in electronic circuits. Supreme Components International is an authorised distributor of Citizen, ensuring you receive genuine, high-quality components. This crystal resonator is designed for stability and accuracy, making it suitable for a wide range of applications, including microcontrollers, communication devices, and timing circuits. Its robust construction ensures reliable performance even in demanding environments. Trust in the quality and precision of Citizen crystals for your critical applications. Benefit from our extensive inventory and fast shipping options.