The FC connector is a fiber optic connector with a screw thread locking mechanism to withstand high-vibration environments Radiall's FC connector is composed of a plated nickel housing and a 2. 5 mm ceramic ferrule and is compliant with the CEI 61754-13 standard. It is commonly used with both single-mode optical fiber and polarization-maintaining optical fiber. FC connectors are used in datacom, telecommunications, measurement. JIS, IEC standard compliant and intermateability test certified. Satisfies flammability rating UL94V-0. * The FC connector from DIAMOND SA is a. Understanding fiber connector types—SC/APC, SC/PC, LC/UPC, LC/APC, ST/PC, FC/PC, and FC/APC—is essential for selecting the right interface for your application. Each type varies by shape, polish (APC, PC, or UPC), and return loss performance, which affect PC, UPC, and APC Polish Styles: What's the. High quality FC connectors, manufactured including Low Loss and High Performance Grades which are suitable for modern high demand and enhanced performance and applications.