FC-FC Single Mode Simplex Metal Fiber Optic Adapter Round & Big D

The FC to FC Single Mode Fiber Optic Adapter with round metal body and Big D flange provides stable, high-precision connectivity for structured cabling systems. It is ideal for telecom and industrial fiber network installations.

SKU FCFCSSMBD Category
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The FC to FC Single Mode Simplex Fiber Optic Adapter is designed for precise and stable fiber alignment in high-performance optical communication systems. It enables a secure connection between two FC connectors, ensuring low insertion loss and consistent transmission quality in single-mode networks.

Featuring a round metal housing with a Big D flange design, this adapter offers enhanced mechanical stability and improved mounting strength compared to standard adapter types. It is well-suited for telecom, data center, and industrial environments where durability and long-term reliability are essential. The high-precision ceramic alignment sleeve ensures accurate core alignment for optimal optical performance.
Connector TypeFC to FC
Fiber ModeSingle Mode
Design TypeSimplex
Housing MaterialMetal (nickel-plated)
ShapeRound (Big D flange)
Mounting TypePanel mount
Alignment SleeveHigh-precision ceramic
Insertion Loss≤ 0.2 dB (typical)
Return Loss≥ 50 dB
DurabilityHigh mechanical strength
CompatibilityFC/UPC | FC/APC connectors
ApplicationPatch panel / ODF
  • FC to FC interface compatibility
  • Designed for single-mode fiber systems
  • Simplex configuration for single-fiber connection
  • Round metal housing with large flange (Big D type)
  • Enhanced mechanical stability and durability
  • High-precision ceramic alignment sleeve
  • Low insertion loss and stable optical performance
  • Corrosion-resistant metal construction for long service life
  • Telecom and carrier-grade networks
  • FTTH (Fiber to the Home) systems
  • Data center fiber distribution frames
  • Optical distribution frames (ODF)
  • Industrial fiber optic environments
  • Enterprise structured cabling systems

We offer OEM and ODM services including housing material options (metal or hybrid), surface finishing (nickel-plated or anodized), flange design variations, logo engraving, connector types (FC/UPC, FC/APC), and packaging customization. Bulk production is available for distributors and large-scale infrastructure projects.

  • What is the advantage of the Big D flange design?
    The larger flange provides stronger mechanical support and improved stability when mounted in patch panels or ODF systems.
  • Why choose a metal round housing?
    Metal housing improves durability and resistance to mechanical stress, making it suitable for industrial and high-reliability environments.
  • Is this compatible with FC/APC connectors?
    Yes, it supports both FC/UPC and FC/APC connectors depending on the system design.
  • What is the function of the alignment sleeve?
    The ceramic alignment sleeve ensures precise core alignment for low-loss optical transmission.
  • Where is this adapter commonly used?
    It is widely used in telecom rooms, data centers, and fiber distribution frames requiring robust mounting and stable performance.