Jiangsu JieJie Microelectronics Co.,Ltd. designs, manufactures, and markets semiconductor discrete components and power electronic devices in China and internationally. It offers thyristor wafers, including TRIACS, SCRS, power transistors, Darlington transistors, etc.; protective device wafers, such as TSS, SIDAC, TVS, ESD, etc.; and FRD wafers comprising FRD, STD, etc. The company also provides triode device packaging and testing products; and diode device packaging and testing products. Its products are used in washing machines, vacuum cleaners, electronic fans, water purifiers, instant electronic showers, negative ion generators, and leakage circuit breakers. The company was founded in 1995 and is based in Qidong, China.