About Us


As one of the professional power electronics manufacturers .Rosen Technology Co.,Ltd is Chinese first independent research & development and export semiconductor devices company.We are also the largest welding diodes production base in China.Since its establishment,Rosen has been devoted to produce and sell  high quality power semiconductor device for customers all over the world.

Rosen Technology Co.,Ltd was established in 2001, factory covering an area of over 20,000 square meters.have 300+ technology research development and production staff.   We have passed the ISO9001:2008 quality management system certification.Products have access to the national industrial production permit.And got a lot of patent certificates on semiconductor device.

Our main products include:Thyristor,SCR thyristor,Phase control thyristor,Fast thyristor,High frequency thyristor,Rectifier diode,Fast recovery diode,welding diode,power modules,thyristor module,diode module,bridge rectifier (single phase rectifier & 3 phase rectifier),Stud thyristor & Stud diode,Capsule thyristor (Disc thyristor),SCR thyristor components,SCR assemblies,heatsinks.

Specially, our products have good quality on high voltage thyristor,high power thyristor and fast thyristor,welding diode,power diode.They can achieve world famous brand’s quality grade but price is very competitive.

Rosen has a technology-skilled, aggressive and innovative research and development team, and has been adhering to the innovative ideas of “ scientific improve quality, service agglutination strength”.

Rosen is the first enterprise that has independently developed KK4500A-3000V fast Thyristors,8000V thyristor,8500V rectifier diode,13500A welding diode. With the main technical indicators reached the level of international similar products, to fill the domestic gap. The company is a member unit of China Power Electronics Association, and has won the honorary title of advanced member of the Association.

Rosen Technology Co.,Ltd has established a efficient customer service system by adhering to the principles of “promote development through innovation, pursue effectiveness through management, win markets with quality, operating on integrity”, to provide customers with a full range of services and the best cost-effective products by persisting in the win-win cooperation philosophy, and strive to work with customers to create a new leap forward.

Goal of Rosen Technology Co.,Ltd: To be the best power electronics supplier  in the world.




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