Fiber Optic Connectors

Image Part Number Description / PDF Quantity Rfq
AX104514-B25

AX104514-B25

Belden

LC DUPLEX ICON, AQUA, PK25

0

AX102188

AX102188

Belden

FXM MOD CLEAR 12-FIB

0

AX105224-B25

AX105224-B25

Belden

FX BR U LC KEYED AQ OM1 25/PK

0

AX102203

AX102203

Belden

OPTIMAX LC KEYED MM 62.5

0

AX103037

AX103037

Belden

FXM MOD 12F MM LC KEY BR

0

AX105219-B25

AX105219-B25

Belden

FX BR U LC KEYED BK OM1 25/PK

0

AX100028

AX100028

Belden

OPTIMAX SC 62.5/125UMCON

0

AX105208-B25

AX105208-B25

Belden

FX BR UNIVERSAL SC SM 25/PK

69

AX105236-B25

AX105236-B25

Belden

FX BR U LC KEYED AQ OM4 25/PK

0

AX105208-S1

AX105208-S1

Belden

FX BR UNIVERSAL SC SM 1/PK

0

AX105221-B25

AX105221-B25

Belden

FX BR U LC KEYED BL OM1 25/PK

0

AX102202

AX102202

Belden

OPTIMAX LC KEYED MM 50

0

AX105247-B25

AX105247-B25

Belden

FX BR U LC KEYED RO OS2 25/PK

0

AX105223-B25

AX105223-B25

Belden

FX BR U LC KEYED RO OM1 25/PK

0

AX105252-B25

AX105252-B25

Belden

FX BR UNIVERSAL LC OM4 EV 25/P

71

AX106821-B25

AX106821-B25

Belden

LC DUPLEX ICON, PURPLE, PK25

0

AX106822-B25

AX106822-B25

Belden

LC DUPLEX ICON, BROWN, PK25

0

AX103176

AX103176

Belden

OPTIMAX LC KEYED MM 50

0

A0408837

A0408837

Belden

OPTIMAX ST COMPAT.MMCONN

0

AX105222-B25

AX105222-B25

Belden

FX BR U LC KEYED VI OM1 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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