LC connector dimensions are engineered for minimalism, measuring just 4. 25mm in height for the duplex housing, which is half the size of SC connectors. The fibers shall terminate in 0. 25mm) ceramic ferrules with non-optical disconnect functionality and an average insertion loss of 0. LC F LC Fiber Optic Connectors provide a rugged solution for high-density telecommunication rooms. LC connector was developed by Lucent Technologies and is a more evolutionary approach to achieving the goals of a SFF (small form factor) connector. Simplex connectors include one LC connector, one boot, a crimp ring (not included for 900-micron), a dust cap, and duplex LC connectors include two simplex connectors plus a duplexing clip.