IQD Frequency Products, headquartered in Crewkerne, United Kingdom, is a leading manufacturer of frequency control components. Founded in 1973, the company originally specialized in quartz crystals and has grown into a globally recognized supplier. In 2011, IQD became part of the Würth Elektronik eiSos Group, benefiting from extensive distribution and manufacturing synergies. The company focuses on the design, development, and production of a comprehensive range of frequency control products. Its product line includes quartz crystals, clock oscillators, temperature-compensated crystal oscillators (TCXOs), voltage-controlled crystal oscillators (VCXOs), oven-controlled crystal oscillators (OCXOs), and voltage-controlled oscillators (VCOs). IQD also offers MEMS oscillators, real-time clock modules, and custom frequency solutions for demanding applications. These components serve industries such as telecommunications, automotive, industrial, consumer electronics, and aerospace. With ISO 9001 and IATF 16949 certified facilities, IQD ensures high quality and reliability. The company maintains a strong market position as one of Europe’s foremost frequency control brands, known for technical expertise, short lead times, and design-in support across a global customer base.