Mercury United Electronics, Inc., commonly known as Mercury, is a leading manufacturer of frequency control products founded in 1973 and headquartered in Taipei, Taiwan. The company specializes in the design, development, and production of high-precision quartz crystals and oscillators for a wide range of electronic applications. Mercury’s product portfolio includes standard and advanced crystals, clock oscillators (XO), voltage-controlled crystal oscillators (VCXO), temperature-compensated crystal oscillators (TCXO), oven-controlled crystal oscillators (OCXO), and crystal filters. These components are critical for timing, clock generation, and frequency stability in electronic systems. Mercury serves global markets with a strong presence in automotive, telecommunications, industrial, consumer electronics, and IoT sectors. The company is known for investing heavily in automated manufacturing and testing to ensure high quality and reliability, holding certifications such as ISO 9001 and IATF 16949. Mercury’s X-tremeFidelity® series TCXOs and miniature crystal packages are particularly popular in space-constrained and high-performance designs. With decades of expertise, Mercury has established itself as a trusted partner for both OEMs and contract manufacturers. Its commitment to innovation and customer support has earned it a solid reputation in the competitive frequency control components market.