Fiber Optic Connectors

Image Part Number Description / PDF Quantity Rfq
A0408837

A0408837

Belden

OPTIMAX ST COMPAT.MMCONN

0

20100012211

20100012211

HARTING

CONN FIBER ST PLUG SMPLX 1000UM

0

PKG.0B.JB3.CASE30G

PKG.0B.JB3.CASE30G

REDEL / LEMO

CONN FIBER RECEPT SMPLX 430UM

0

1060565000

1060565000

Woodhead - Molex

CONN FIBER FC PLUG SMPLX 126UM

0

1060323160

1060323160

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 128UM

0

AX105222-B25

AX105222-B25

Belden

FX BR U LC KEYED VI OM1 25/PK

0

AX105230-B25

AX105230-B25

Belden

FX BR U LC KEYED YL OM4 25/PK

0

FLCDMC5SPE

FLCDMC5SPE

Panduit Corporation

PRE-POLISHED KEYED LC DUPLEX OPT

0

AX105245-B25

AX105245-B25

Belden

FX BR U LC KEYED BL OS2 25/PK

0

0860687070

0860687070

Woodhead - Molex

CONN FIBER SCD 3MM

0

MF10B-WP6.5C01-0200(31)

MF10B-WP6.5C01-0200(31)

Hirose

CONNECTOR

0

FLCDSCHAQ

FLCDSCHAQ

Panduit Corporation

PRE-POLISHED KEYED LC DUPLEX OPT

0

2313546

2313546

Phoenix Contact

CONN FIBER SCRJ PLUG DUPLEX

0

1963340000

1963340000

Weidmuller

CONN FIBER LC PLUG DUPLX

0

AX105251-B25

AX105251-B25

Belden

FX BR U LC KEYED WH OS2 25/PK

0

AX102199

AX102199

Belden

OPTIMAX LC KEYED MM 50

0

6828129-2

6828129-2

TE Connectivity AMP Connectors

CONN FIBER LC PLUG DUPLX

0

1060257470

1060257470

Woodhead - Molex

CONN FIBER LC PLUG DUPLX 127UM

0

1408030

1408030

Phoenix Contact

CONN FIBER SCRJ PLUG DUPLEX

0

1060242400

1060242400

Woodhead - Molex

CONN FIBER LC PLUG SMPLX 125.5UM

0

Fiber Optic Connectors

1. Overview

Fiber optic connectors are opto-mechanical devices that align and join optical fibers to enable light transmission. They play a critical role in telecommunications, data centers, and industrial systems by enabling rapid deployment, maintenance, and scalability of fiber networks. Modern advancements require connectors to support higher bandwidths, lower loss, and robust environmental performance.

2. Major Types and Functional Classification

TypeFunctional FeaturesApplication Examples
LC (Lucent Connector)Push-pull latch mechanism, compact sizeDatacom transceivers, SFP modules
SC (Subscriber Connector)Double-click latch, high durabilityTelecom networks, PON systems
ST (Straight Tip)Bayonet mount, quick connect/disconnectEnterprise networks, legacy systems
FC (Ferrule Connector)Screw-on design, vibration resistanceTest equipment, high-vibration environments
MPO/MTP (Multi-fiber Push On)Multi-fiber alignment (up to 24 fibers)Data center backbone, 400G Ethernet

3. Structure and Components

Typical fiber optic connectors consist of: - Ferrule: Ceramic, polymer, or metal tube holding fiber end - Adapter sleeve: Aligns ferrules in mating connections - Cable boot: Stress relief for fiber cable - Housing: Protective enclosure (ABS/polycarbonate) - Dust cap: Protects endface from contamination

4. Key Technical Specifications

ParameterTypical RangeSignificance
Insertion Loss (dB)0.1-0.5 dBMeasures signal attenuation at connection point
Return Loss (dB)20-60 dBReflectance performance affecting system stability
Endface Geometry ( m)Radius: 10-25mmApex offset & fiber height impact optical contact
Durability (Mating Cycles)500-2000 cyclesLongevity under repeated use
Operating Temperature-40 C to +85 CEnvironmental reliability

5. Application Areas

  • Telecommunications: 5G backhaul, FTTH networks
  • Data Centers: Hyperscale server interconnects
  • Industrial: Harsh environment sensor systems
  • Medical: Endoscopic imaging equipment
  • Aerospace: Avionics fiber harnesses

6. Leading Manufacturers and Products

ManufacturerRepresentative Products
Amphenol Fiber SolutionsCS Series connectors, OptiMPO
TE ConnectivityCONEC LX-5, MULTILANE MPO
3MVolition Field Installable Connectors
Senko Advanced ComponentsSN Series singlemode connectors

7. Selection Guidelines

Key considerations include: - Transmission requirements (singlemode/multimode) - Environmental conditions (temperature, vibration) - Space constraints (LC preferred for high-density) - Termination method (factory terminated vs field installable) - Cost vs performance trade-offs

8. Industry Trends

Emerging trends include: - Migration to 8 angled physical contact (APC) for 400G+ systems - Miniaturization (CS/MRJ21 connectors for 1RU equipment) - Smart connectors with embedded diagnostics - Increased adoption of polymer ferrules for cost-sensitive applications - Standardization of multi-fiber interfaces (MPO Type II/III)

9. Real-world Application Case

A hyperscale data center implemented MPO-12 connectors for 100G parallel optics, achieving 40% space reduction compared to LC-based solutions. The design incorporated anti-rotation keying to prevent misalignment in high-density patch panels.

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