ST Type Fiber Optic Connector

SINO OPTIC’s ST connectors utilize a bayonet style mating concept to provide a secure, robust coupling mechanism. The enclosed spiral slotted coupling nut allows easy insertion in densely packed patch panels.

The ST connector has been used extensively in telecom, data premise installation, and test lab applications. Special attention has been given to every ST performance parameter, increasing product repeatability and exceeding industry standards.

The ST connector is available with a ceramic or stainless-steel ferrule.




  • Insertion Loss:

≤ 0.20dB Typical Single mode

≤ 0.30dB Typical Multimode


  • Return Loss:

Ultra (UPC) ≥ 55dB


  • Durability:

1000 Mating Cycles


  • Operating Temperature:

-40°C to +85°C



  • High precision zirconia ferrules minimize insertion loss values

  • The ST connector body and coupling nut are precision zinc die cast and nickel plated for superior strength and corrosion resistance

  • Available with 900μm, 2.0mm, or 3.0mm,​​ 45°/90°, and flex boots

  • Available in singlemode and multimode versions



  • Datacom

  • Telecom

  • Broadband

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  • TIA/EIA 604-4

  • IEC 61754-13

  • Telcordia-GR-326-CORE

  • RoHS