Fiber Optic Connectors

Image Part Number Description / PDF Quantity Rfq
1963310000

1963310000

Weidmuller

CONN FIBER SC PLUG DUPLX

0

1060277150

1060277150

Woodhead - Molex

CONN FIBER LC PLUG DUPLX

0

AX105254-S1

AX105254-S1

Belden

FX BR UNIVERSAL ST OM4 EV 1/PK

0

1060660400

1060660400

Woodhead - Molex

CONN FIBER SC PLUG DUPLX 127UM

0

SW20-SCR-1(02)

SW20-SCR-1(02)

Hirose

CONN COUPLER RCPT SC-SC SIMPLEX

0

AX103174

AX103174

Belden

OPTIMAX LC KEYED MM 50

0

20101258220

20101258220

HARTING

LC FIBER OPTIC CONTACT FOR SINGL

0

AX105205-B25

AX105205-B25

Belden

FX BR UNIVERSAL SC OM1 25/PK

0

AX101981

AX101981

Belden

OPTIMAX 62.5 UM LC CONNE

0

FSTMPC6EI

FSTMPC6EI

Panduit Corporation

CONN FIBER ST PLUG SIMPLEX 125UM

0

1060345900

1060345900

Woodhead - Molex

CONN FIBER SC PLUG DUPLX 126UM

0

FLCDMCXTSB

FLCDMCXTSB

Panduit Corporation

PRE-POLISHED KEYED LC DUPLEX OPT

0

20100016233

20100016233

HARTING

CONN FIBER TNC PLUG SMPLX 1000UM

0

09574000002000

09574000002000

HARTING

CONN FIBER LC PLUG DUPLX

0

1963400000

1963400000

Weidmuller

CONN FIBER SC PLUG DUPLX

0

AX105241-B25

AX105241-B25

Belden

FX BR U LC KEYED GN OS2 25/PK

0

1060120000

1060120000

Woodhead - Molex

CONN FIBER ST PLUG SMPLX

0

1654866

1654866

Phoenix Contact

CONN FIBER OPTIC

0

AX105252-S1

AX105252-S1

Belden

FX BR UNIVERSAL LC OM4 EV 1/PK

0

AX105231-B25

AX105231-B25

Belden

FX BR U LC KEYED BK OM4 25/PK

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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