Fiber Optic Connectors

Image Part Number Description / PDF Quantity Rfq
1063871987

1063871987

Woodhead - Molex

CONN FIBER LC2 SM 125.5UM

0

1060123300

1060123300

Woodhead - Molex

CONN FIBER ST PLUG SMPLX 128UM

0

1060134000

1060134000

Woodhead - Molex

CONN FIBER ST PLUG DMPLX 125UM

0

1060323200

1060323200

Woodhead - Molex

CONN FIBER SC TUNABLE

0

1060346900

1060346900

Woodhead - Molex

CONN FIBER SC PLUG DUPLX 125.5UM

0

1060564000

1060564000

Woodhead - Molex

CONN FIBER FC PLUG SMPLX 125UM

0

1063872425

1063872425

Woodhead - Molex

CONN FIBER LC2 DUPLX 126UM

0

1060630400

1060630400

Woodhead - Molex

CONN FIBER SC PLUG SMPLX

0

1060100440

1060100440

Woodhead - Molex

CONN FIBER ST PLUG SMPLX 127UM

0

1060323900

1060323900

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 128UM

0

1060906600

1060906600

Woodhead - Molex

CONN FIBER LC PLG SMPLX 125.25UM

0

1060635470

1060635470

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 126UM

0

1060713000

1060713000

Woodhead - Molex

CONN FIBER SC RECEPT SMPLX 128UM

0

1063871929

1063871929

Woodhead - Molex

CONN FIBER LC2 SM 126UM

0

1060906200

1060906200

Woodhead - Molex

CONN FIBER LC APC 125.25UM

0

1063871560

1063871560

Woodhead - Molex

CONN FIBER LC2 MM 126UM

0

1063871862

1063871862

Woodhead - Molex

CONN FIBER LC2 DUPLX 127UM

0

1060403200

1060403200

Woodhead - Molex

CONN FIBER ESCON PLUG DUPLX

0

1060245250

1060245250

Woodhead - Molex

CONN FIBER LC PLUG SMPLX 126UM

0

1060324250

1060324250

Woodhead - Molex

CONN FIBER SC TUNABLE

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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