With 36 years of professional experience, our company, Tianjin Zhonghuan Semiconductor Joint-Stock, is the world's largest high-voltage silicon diode manufacturer. We export 80 million diodes to buyers in Europe, the US and Asia every month. Our Products
We mainly produce high-voltage silicon diodes and bridge diodes. Our diodes are mainly used in fly-back transformers, high-voltage generators, MWOS and X-ray machines. Manufacturers who produce TVs, monitors, air cleaners, water purifiers, security devices and microwave ovens, such as LG, Samsung and Thomson purchase our diodes. Our Production Process
Since 1983, we have been importing whole sets of production technology and equipment from Japan and the US. In 1994, we obtained our ISO 9001:2000 certification. Products are checked by our QC team using a billboard system, where every statistic for each procedure and production line are displayed to ensure quality. Our Services
We maintain a large inventory of every major item and are able to ship products the same day your order is confirmed. For your convenience, we prepare all delivery documents according to your requests so that goods will clear customs easily and fast. Contact Us Today
View our showroom for more product information today and then contact us. Our trade staff can communicate with you in English, Japanese and Korean. And, they can respond to your inquiries in as fast as five minutes. Information CD and products manual are available.