Jiangsu HD-Crystal technology CO., Ltd is a high-tech company specialized in the research and development, production, sales and technical support of piezoelectric quartz crystal resonator and quartz crystal oscillator. Over the years the company has been committed to high-end quality quartz piezoelectric products, "H-DIODE" brand in December 2013 formally registered. The main products are HC-49/S, HC-49/S-SMD, and the main products are HC-49/S-SMD, which is located in Jiangyin Lingang New Town, which is located in the high degree of electronic manufacturing. M49/S, M49/S-SMD, SMD7050, SMD6035, SMD5032, SMD2520, SMD2016 and Oscillator (OSCILLATOR, VCXO, TCXO). Product applications include mobile phones, tablet computers, satellite communications, automotive systems, GPS, personal computers, wireless communications and home products, the product is mainly reflected in the basic frequency signal source generation, transmission, filtering and other functions. Hyde frequency continued to focus on technology research and development and quality of the implementation of rooted, products throughout China, Japan, Singapore, the United States and Europe and other parts of the world, to serve the world's electronics industry.