CII是TE Connectivity旗下品牌，CII高性能信号电平和中频继电器设计用于在航空航天、军事电子和商业应用的各种极端环境中运行，提供这些密封继电器的密封规格和商业版本。主要产品包括：CII/TEConnectivity继电器、CII接触器、CII开关、CII固态功率继电器等。

CII is a TE Connectivity Brand. CII high performance signal level and mid-range Relays are designed to perform in a wide range of extreme environments in aerospace, military electronics and commercial applications.Both mil-spec and commercial versions of these hermetically-sealed Relays are offered.