IQD Crystal can trace its origins in Crewkerne to the end of 1973, when entrepreneur Hugh Robinson took his young company Interface International into the quartz crystal business servicing a contract for low frequency crystals in filters for FDM equipment, with Cable & Wireless.
Operating from an office in Market Street, Crewkerne, Somerset, rent was just £1 per week and much of the trade in the early days was connected to the Ham Radio business and PMR (Private Mobile Radio).
Through a network of chance meetings and shrewd appointments, quartz crystal sales grew and the portfolio of products expanded to include packaged oscillators to service the VHF and UHF repeater stations popping up in the early 70s.
Development of the business has taken many turns, including significant growth and the necessary moving of office and warehousing premises. In fact in 1997, IQD appeared in the UK’s top businesses for growth. Fast forward through another 20 years and through a few business acquisitions, in 2017 IQD was acquired by German electronics giant, Wurth Elektronik eiSos, a subsidiary of the larger Wurth Group.
Today IQD continues to enjoy remarkable growth becoming a significant global supplier of frequency control products across a wide range of industries and applications from national defence projects, consumer electronics, in medical wearables, transport navigation, 5G network technology and IoT applications, to name just a few.
IQD的起源可以追溯到1973年底，当时企业家休·罗宾逊(Hugh Robinson)将他年轻的公司Interface International带入石英晶体业务，为FDM设备滤波器中的石英晶体提供服务，包括有线和无线。
在萨默塞特郡克鲁肯市市场街的一间办公室里，每周租金只有1英镑，早期的大部分交易都与业余无线电业务和PMR(私人移动无线电)有关。
通过偶然的会议和精明的约会，石英晶体的销售增长，产品组合扩大到包括封装振荡器，以服务于70年代初出现的VHF和UHF中继站。
业务的发展经历了许多转折，包括显著的增长和必要的办公和仓储场所的移动。事实上，在1997年，IQD出现在英国增长最快的企业之列。再过20年，通过几次业务收购，2017年，IQD被德国电子巨头伍尔特集团(Wurth Group)的子公司伍尔特电子(Wurth Elektronik eiSos)收购。
今天，IQD继续享有显着的增长，成为一个重要的全球变频控制产品供应商，涵盖国防项目，消费电子产品，医疗可穿戴设备，运输导航，5G网络技术和物联网应用等广泛的行业和应用。

IQD原厂编码	型号	频率	频率容差	频率稳定度	工作温度范围
LFXTAL081314Reel	IQXC-240	37.4MHz	±7ppm	±15ppm	-30°C to 85°C
LFXTAL081316Reel	IQXC-240	38.4MHz	±7ppm	±15ppm	-30°C to 85°C
LFXTAL072539Reel	IQXC-26	24.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL078691Cutt	IQXC-26	24.0MHz	±10ppm	±30ppm	-40°C to 85°C
LFXTAL081608Cutt	IQXC-26	24.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL081608Reel	IQXC-26	24.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL081609Cutt	IQXC-26	25.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL083890Cutt	IQXC-26	25.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL052799Cutt	IQXC-26	26.0MHz	±10ppm	±30ppm	-40°C to 85°C
LFXTAL066742Cutt	IQXC-26	26.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL066742Reel	IQXC-26	26.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL069296Cutt	IQXC-26	26.0MHz	±15ppm	±20ppm	-20°C to 70°C
LFXTAL070729Cutt	IQXC-26	26.0MHz	±10ppm	±15ppm	-20°C to 70°C
LFXTAL081614Cutt	IQXC-26	26.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL081614Reel	IQXC-26	26.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL072541Cutt	IQXC-26	27.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL072541Reel	IQXC-26	27.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL081610Cutt	IQXC-26	27.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL072302Cutt	IQXC-26	30.0MHz	±15ppm	±15ppm	20°C to 70°C
LFXTAL081612Cutt	IQXC-26	30.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL056523Cutt	IQXC-26	32.0MHz	±20ppm	±20ppm	-20°C to 70°C
LFXTAL056523Reel	IQXC-26	32.0MHz	±20ppm	±20ppm	-20°C to 70°C
LFXTAL069526Cutt	IQXC-26	32.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL069526Reel	IQXC-26	32.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL079322Cutt	IQXC-26	32.0MHz	±10ppm	±20ppm	-20°C to 70°C
LFXTAL079322Reel	IQXC-26	32.0MHz	±10ppm	±20ppm	-20°C to 70°C
LFXTAL081613Cutt	IQXC-26	32.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL083149Reel	IQXC-26	32.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL072304Cutt	IQXC-26	37.4MHz	±15ppm	±15ppm	20°C to 70°C
LFXTAL081616Cutt	IQXC-26	37.4MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL063312Cutt	IQXC-26	40.0MHz	±30ppm	±30ppm	-40°C to 85°C
LFXTAL069527Cutt	IQXC-26	40.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL069527Reel	IQXC-26	40.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL081619Cutt	IQXC-26	40.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL069528Cutt	IQXC-26	48.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL069528Reel	IQXC-26	48.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL081620Cutt	IQXC-26	48.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL078795Cutt	IQXC-42	16.0MHz	±15ppm	±50ppm	-40°C to 85°C
LFXTAL081780RL3K	IQXC-42	16.0MHz	±10ppm	±20ppm	-30°C to 85°C
LFXTAL081781RL3K	IQXC-42	16.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL081821Cutt	IQXC-42	16.0MHz	±10ppm	±15ppm	-30°C to 85°C
LFXTAL082887RL3K	IQXC-42	16.0MHz	±10ppm	±30ppm	-40°C to 105°C
LFXTAL059585Cutt	IQXC-42	20.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL059585Reel	IQXC-42	20.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL059585RL3K	IQXC-42	20.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL064174RL3K	IQXC-42	24.0MHz	±30ppm	±30ppm	-40°C to 85°C
LFXTAL066139Cutt	IQXC-42	24.0MHz	±20ppm	±20ppm	-40°C to 85°C
LFXTAL069476RL3K	IQXC-42	24.0MHz	±10ppm	±10ppm	-20°C to 75°C
LFXTAL069493Cutt	IQXC-42	24.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL069493Reel	IQXC-42	24.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL069493RL3K	IQXC-42	24.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL072577RL3K	IQXC-42	24.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL076411Cutt	IQXC-42	24.0MHz	±10ppm	±10ppm	-20°C to 70°C
LFXTAL076411RL3K	IQXC-42	24.0MHz	±10ppm	±10ppm	-20°C to 70°C
LFXTAL081531RL3K	IQXC-42	24.0MHz	±10ppm	±20ppm	-40°C to 85°C
LFXTAL081646RL3K	IQXC-42	24.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL082123Cutt	IQXC-42	24.0MHz	±10ppm	±15ppm	-40°C to 85°C
LFXTAL082123RL3K	IQXC-42	24.0MHz	±10ppm	±15ppm	-40°C to 85°C
LFXTAL090516RL3K	IQXC-42	24.0MHz	±50ppm	±50ppm	-40°C to 85°C
LFXTAL054026Cutt	IQXC-42	25.0MHz	±25ppm	±30ppm	-40°C to 85°C
LFXTAL059552Reel	IQXC-42	25.0MHz	±20ppm	±30ppm	-40°C to 85°C
LFXTAL064933Cutt	IQXC-42	25.0MHz	±30ppm	±30ppm	0°C to 50°C
LFXTAL066140Cutt	IQXC-42	25.0MHz	±20ppm	±20ppm	-40°C to 85°C
LFXTAL069494Bulk	IQXC-42	25.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL069494Cutt	IQXC-42	25.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL069494Reel	IQXC-42	25.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL069494RL3K	IQXC-42	25.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL075431RL3K	IQXC-42	25.0MHz	±30ppm	±40ppm	-30°C to 85°C
LFXTAL082125Cutt	IQXC-42	25.0MHz	±10ppm	±15ppm	-40°C to 85°C
LFXTAL082125RL3K	IQXC-42	25.0MHz	±10ppm	±15ppm	-40°C to 85°C
LFXTAL085846RL3K	IQXC-42	25.0MHz	±25ppm	±50ppm	-40°C to 125°C
LFXTAL090436RL3K	IQXC-42	25.0MHz	±10ppm	±20ppm	-40°C to 105°C
LFXTAL059591Cutt	IQXC-42	26.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL059591Reel	IQXC-42	26.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL059591RL3K	IQXC-42	26.0MHz	±15ppm	±20ppm	-40°C to 85°C
LFXTAL066141Cutt	IQXC-42	26.0MHz	±15ppm	±15ppm	-20°C to 70°C
LFXTAL076879Bulk	IQXC-42	26.0MHz	±30ppm	±30ppm	-40°C to 85°C