Jiangsu Jilai Microelectronics (江苏吉莱微电子, formerly Qidong Jilai Electronics, 启东吉莱电子) is a company that designs, manufactures, and tests semiconductors. It offers thyristors, semiconductor protection devices, fast recovery diodes (FRDs), and metal–oxide–semiconductors (MOSs). The company serves the smart home, consumer electronics, solar, energy, environmental protection, clean energy, 5G communications, automotive, and smart electronics markets.