FC fiber optic connector with threaded metal coupling
FC fiber optic connector detail view showing screw-type body
Fiber Optic Connector

FCFiber Optic Connector — Threaded Coupling for Test & High-Vibration Use

FC fiber optic connector with 2.5mm zirconia ceramic ferrule and screw-type threaded coupling mechanism. Designed for precision test equipment, single mode networks, and high-vibration environments. Available in UPC and APC polish types.

Connector TypeFC/UPC, FC/APC
Fiber ModeSM 9/125μm, MM 50/125μm, MM 62.5/125μm
Insertion Loss≤0.2dB (typical), ≤0.3dB (max)
Return Loss≥50dB (UPC), ≥60dB (APC)
Durability≥1,000 mating cycles
Operating Temperature-40°C to +85°C
Specifications

Technical Specifications

Connector Type
FC/UPC, FC/APC
Ferrule Diameter
2.5mm
Ferrule Material
Zirconia Ceramic
Fiber Mode
SM 9/125μm, MM 50/125μm, MM 62.5/125μm
Polish Type
UPC (flat) / APC (8°)
Insertion Loss
≤0.2dB (typical), ≤0.3dB (max)
Return Loss
≥50dB (UPC), ≥60dB (APC)
Durability
≥1,000 mating cycles
Repeatability
≤0.1dB
Operating Temperature
-40°C to +85°C
Cable Compatibility
0.9mm, 2.0mm, 3.0mm
Coupling Mechanism
Screw-type threaded (2.5mm universal)
Standards
IEC 61754-13 · TIA-604-4 (FOCIS 4) · Telcordia GR-326
Key Features

Engineered For Performance

Screw-Type Threaded Coupling

Precision threaded barrel provides a secure, vibration-proof connection that will not loosen under mechanical stress, making FC the preferred connector for test labs and high-vibration installations.

Precision Keyed Alignment

External key on the connector body ensures repeatable rotational alignment with every mating, delivering consistent low-loss performance critical for precision measurement applications.

Ultra-Low Insertion Loss

2.5mm zirconia ceramic ferrule with sub-micron concentricity achieves typical insertion loss of 0.2dB or less, meeting the stringent requirements of optical test and measurement equipment.

Wide Temperature Range

Operating temperature range of -40 to +85 degrees C with all-metal coupling body ensures reliable performance in extreme environments from telecom huts to outdoor enclosures.

Typical Applications

01

Test & Measurement Equipment

Standard connector interface on OTDRs, optical power meters, light sources, and optical spectrum analyzers where repeatable precision connections are essential.

02

Telecom Central Office

Optical distribution frames and patch panels in telecom central offices where screw-lock security prevents accidental disconnection during routine maintenance.

03

High-Vibration Installations

Industrial plants, broadcast facilities, and transportation infrastructure where mechanical vibration would loosen push-pull or bayonet-style connectors.

Interested in this FC Connector?

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TTI Fiber 12,000 sqm manufacturing facility in Shenzhen, China

Why TTI Fiber

Trusted Manufacturer Since 2013

TTI Fiber is a professional fiber optic manufacturer based in Shenzhen, China. We provide full OEM/ODM services with factory-direct pricing and dedicated engineering support.

12,000sqmManufacturing Base
15+yearsIndustry Experience
100+countriesProducts Exported
30+brandsGlobal Partners
ISO9001ISO14001CERoHSCPRREACH

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