Fiber Optic Connectors

Image Part Number Description / PDF Quantity Rfq
1063871531

1063871531

Woodhead - Molex

CONN FIBER LC2 MM 172UM

0

1063871904

1063871904

Woodhead - Molex

CONN FIBER LC2 SM 126UM

0

1060324180

1060324180

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 125UM

0

1063872189

1063872189

Woodhead - Molex

CONN FIBER LC2 MM 142UM

0

1060125500

1060125500

Woodhead - Molex

CONN FIBER ST PLUG SMPLX 126UM

0

1060135000

1060135000

Woodhead - Molex

CONN FIBER ST PLUG DMPLX 126UM

0

1060134500

1060134500

Woodhead - Molex

CONN FIBER ST PLUG DMPLX 125UM

0

1060132500

1060132500

Woodhead - Molex

CONN FIBER ST PLUG DMPLX 125.5UM

0

1060703080

1060703080

Woodhead - Molex

CONN FIBER SC RECEPT SMPLX 128UM

0

1060125000

1060125000

Woodhead - Molex

CONN FIBER ST PLUG SMPLX 126UM

0

1060323100

1060323100

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 128UM

0

1060324070

1060324070

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 125UM

0

1060245400

1060245400

Woodhead - Molex

CONN FIBER LC PLUG SMPLX 126UM

0

1060400100

1060400100

Woodhead - Molex

CONN FIBER ESCON PLUG DUPLX

0

1063872102

1063872102

Woodhead - Molex

CONN FIBER LC2 MM 127UM

0

1063871902

1063871902

Woodhead - Molex

CONN FIBER LC2 SM 125.5UM

0

1060247185

1060247185

Woodhead - Molex

CONN FIBER LC PLUG SMPLX 127UM

0

1060323980

1060323980

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 128UM

0

1060327000

1060327000

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 127UM

0

1060327180

1060327180

Woodhead - Molex

CONN FIBER SC PLUG SMPLX 127UM

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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