What does LC-FC pigtail fiber look like

An LC-FC pigtail fiber has a small LC connector on one end and a round screw-type FC connector on the other, with a short length of optical fiber extending between them.

Physical Description

An LC-FC pigtail fiber is a short optical fiber cable with two different connectors at each end. One end features an LC connector, which is compact, uses a 1. 25mm ferrule, and has a latch mechanism for secure, high-density connections, making it ideal for data centers and SFP modules.

The other end has an FC connector, which is round, metal-bodied, and uses a screw-threaded design for precise alignment and high reliability in high-vibration or telecom environments. The fiber itself is typically single-mode or multimode, with the bare fiber portion either pre-terminated or ready for splicing into a bulk fiber cable. The pigtail may be color-coded according to TIA/EIA standards to identify fiber type and polarity.

Typical FeaturesLC Connector End: Small, rectangular, push-pull latch, ferrule diameter 1. 25mm, designed for high-density panels.

F

C Connector End: Round, threaded metal body, ferrule diameter 2. 5mm, provides secure screw-in connection. Fiber Length: Usually short (0.

5–2 meters) to facilitate splicing or patching. Cable Jacket: Can be standard indoor, armored, or waterproof depending on installation requirements. ApplicationsLC-FC pigtails are commonly used in telecom networks, data centers, and optical distribution frames (ODFs) where a high-density LC port needs to connect to equipment or a network segment that uses FC connectors.

The pigtail allows low-loss, reliable connections while providing flexibility for field splicing or integration into existing fiber infrastructure. In summary, an LC-FC pigtail fiber is visually identifiable by its two distinct connector types at either end, a short fiber length, and often a color-coded jacket, combining the compactness of LC with the precision and durability of FC connectors.