LC

LC is a standard type of fiber optical connector termination. It's a small form factor connector that uses a 1.25mm ceramic ferrule, half the size of the SC connector.

The connector, originally developed by Lucent (hence Lucent Connector) for telecommunications networks, provides a pull-proof design and its small size is perfect for high-density applications. It uses a retaining tab mechanism, similar to a phone or RJ45 connector, and the connector body resembles the squarish shape of SC connector. It also incorporates a unique latching mechanism that provides stability in system rack mounts.

LC connector is available in simplex or duplex versions, offers good performance, and is highly favored for singlemode applications.