The LC connector is a type of fiber optic connector. Due to its physical dimensions being only half the size of SC/ST/FC connectors, it falls under the category of small form factor (SFF) connectors. LC connectors are widely used in structured cabling system engineering. They are manufactured using a user-friendly modular jack (RJ) latching mechanism. The dimensions of their pins and sleeves are half those of standard SC, FC, and similar connectors, measuring 1.25mm. This design enhances the density of fiber optic connectors within fiber distribution frames. Currently, LC connectors have achieved dominant market share in single-mode SFF applications, while their adoption in multi-mode applications is also growing rapidly.
Table1 LC Main Parameters
| Category | Specification Requirements |
| End-Face Requirements | 400X Compliant with IEC 61300-3-35 |
| Insertion Loss | ≤0.3dB |
| Return Loss | ≥45dB (SM, PC); ≥60dB (SM, APC) |
| Repeatability | ≤0.2dB |
| Ferrule Type | PC, UPC, APC with optional floating end |
| Covering | 0.9Hytrel, 2.0/3.0mm PVC, armored empty conduit, etc. available |
| Operating Temperature | -40°C to +85°C |
| Compliance Standard | YD_T 1272.1-2018 |
Main Features
High stability and reliability.
Low insertion loss, high return loss.
Excellent polishing standards.
End-face geometry parameters comply with GR-326Core.
Available in single-core or dual-core cables with Ф0.9, Ф2.0, or Ф3.0 diameters.
Applications
Telecommunications networks
Cable television
Gigabit Ethernet
Active or passive equipment terminals
Industrial, medical, and military applications
Dimensions Of The External Structure
