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JKSEMI is a high-tech enterprise specialized in the wafer design, R&D, manufacture and marketing of power protection device and polymer over current protection material. JKSEMI is one of the professional suppliers in worldwide which possess over current and over voltage protection integrated circuits technology. 

JKSEMI is committed to the development and sales of high-quality, high-performance analog integrated circuits, power devices wafer and polymer chips. It has always been planning, developing and manufacturing aiming at world-class electronic technology. JKSEMI’s products include protection devices (TVS, ESD, TSS), power devices (MOS, SKY, DIODE, TRANSISTOR), polymer PPTC (PTC, PESD). With support of Chinese Academy of Sciences, JKSEMI has built solid and long term partnership with well-known domestic foundries, like CSMC, ASMC, and IC packaging and test plants, like Huatian, BYD. JKSEMI’s production bases locate in Shenzhen and Jiangsu, and produce two major series products-power devices and polymer materials. Product quality has reached international advanced level, especially our ultra-low capacitance series protective components, low resistance series polymer PPTC, over-current and over-voltage module possess independent intellectual property rights and patent system. Company processes conform to TSO9001, TS16949 systems; products complies with IEC, FCC and other international standards, and also obtain UL, VDE, TUV, SGS and other environmental safety certification. 

As a leader in over-current and over-voltage components filed, JKSEMI currently has a R&D team of 21 personnel, including 2 academicians of Chinese Academy of Sciences, 2 graduate supervisors, 10 postgraduates and 7 undergraduates. Besides, JKSEMI owns a high-qualified QA and FAE team. Through years of unremitting efforts, JKSEMI’s products are highly recognized in the industry for its solid quality, first-class technical support. Our products are an indispensable part of almost all products that use electric energy, including : Automotive electronic systems, traffic signals, communications equipment terminals, industrial control, power, power equipment, instrumentation system, security and other electronic circuit protection. JKSEMI’s cost-effective products made it has become key supplier of BYD automobile, Dongfeng automobile, ZTE, Fiberhome, Lenovo, Hisense, Skyworth and other well-known enterprises and their downstream foundries.