TIANJIN ZHONGHUAN SEMICONDUCTOR JOINT-STOCK CO.,LTD. is a professional manufacturer of discrete semiconductor devices, and Tianjin Hi-Tech enterprise. The company now has 924 workers & staffs, in which 280 people are technician. Based on imported foreign advanced technology, by absorption and digestion, self-innovation, the company has taken the core technology of products in hand. The production value by self-developed is over 95%. In 1994,the company had passed ISO9002:1994 product system approval. In 2003,the company had passed ISO9001:2000 quality system approval. In 2004, we carried out shares holding transformation and TIANJIN ZHONGHUAN SEMICONDUCTOR JOINT-STOCK CO.,LTD. was founded on July 16 , 2004

    The product’s quality has reached to international advanced level, and economic benefit ranks highly in the same industry in China.
    The main products of the company are High Voltage Silicon Diode, Silicon Rectifier Diode, Silicon Bridge Rectifier, MWO High Voltage Silicon Diode and special High Voltage Silicon Diode for industrial application, etc. These products are widely used in Flyback Transformer, CTV, Monitor, Micro-wave Oven, Air Cleaner, Air Conditioner, Washing Machine, Programme Control Exchanger, every kinds of adaptor and other electric equipment. The annual production capacity is over 1 billion pcs, with more than 200 million RMB Yuan annual turn over. The products are sold around whole China and 21 countries & regions abroad. The High Voltage Silicon Diode production and sales amount have ranked the second largest place in the world, with 17% market share abroad and 43% in domestic. The share rate of Silicon Rectifier Diode & Silicon Bridge Rectifier in China’s CTV market reach to 20% and 50% respectively.