What is the length of the lc ceramic ferrule

LC ceramic ferrules typically have a 1.25 mm outer diameter, precise inner diameters for fiber alignment, and lengths ranging from 4.9 mm to 8.1 mm depending on flange configuration.Standard DimensionsOuter Diameter (OD): 1.25 mm (0.049 in.) for LC ferrules, which is standard for high-density connectors .Inner Diameter (ID): Precision bore sizes vary depending on fiber type:Singlemode fibers: ~126–127 µmMultimode fibers: ~230–440 µm The ID is polished to a tolerance of ±0.001 mm in concentricity and ±0.0005 mm in eccentricity for singlemode ferrules .Length: The ceramic ferrule itself is typically 4.9 mm to 8.1 mm, with an optional nickel-plated brass flange adding 6.9 mm to 7.9 mm, resulting in a total flanged ferrule length of up to 16 mm .Material and PrecisionMaterial: Zirconia ceramic, chosen for its non-magnetic properties, high durability, and low insertion loss .Concentricity: High concentricity at both ends ensures precise fiber alignment, critical for low-loss optical connections .Surface Finish: The ferrule OD is ground and polished to submicron precision, and the ID is polished to align the fiber core accurately .ApplicationsLC ceramic ferrules are used in high-density telecommunication racks, LANs, fiber-to-the-desk applications, and optical communication connectors. They support both singlemode and multimode fibers, providing low insertion loss (~0.1 dB per mated pair) and high repeatability .SummaryFor LC connectors, the key dimensions are 1.25 mm OD, precise ID matching the fiber type, and ferrule lengths of 4.9–8.1 mm, optionally extended with a flange. Zirconia ceramic ensures durability, high concentricity, and low optical loss, making these ferrules suitable for both standard and high-performance optical applications .