Modular Connectors - Jacks

Image Part Number Description / PDF Quantity Rfq
0855437003

0855437003

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHLD

973

0424104170

0424104170

Woodhead - Molex

CONN MOD JACK 4P4C VERT UNSHLD

490

0432028927

0432028927

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0855105020

0855105020

Woodhead - Molex

CONN MOD JACK 8P8C VERT UNSHLD

89

0441500006

0441500006

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0855105119

0855105119

Woodhead - Molex

CONN MOD JACK 6P6C VERT UNSHLD

20

0438600007

0438600007

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

36

0955406886

0955406886

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0432236113

0432236113

Woodhead - Molex

CONN MOD JACK 6P6C R/A UNSHLD

0

0855025007

0855025007

Woodhead - Molex

CONN MOD JACK 6P6C R/A UNSHLD

0

0442820001

0442820001

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

211

0438600015

0438600015

Woodhead - Molex

CONN MOD JACK 6P4C R/A SHIELDED

26

0855135113

0855135113

Woodhead - Molex

CONN MOD JACK 8P8C VERT UNSHLD

0

0442480033

0442480033

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

80

0438600026

0438600026

Woodhead - Molex

CONN MOD JACK 6P6C R/A SHIELDED

935

0950097661

0950097661

Woodhead - Molex

CONN MOD JACK 6P6C R/A UNSHLD

3744

0441440013

0441440013

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

0

0955406880

0955406880

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0441500021

0441500021

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0432238128

0432238128

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

203

Modular Connectors - Jacks

1. Overview

Modular connectors-jacks are standardized electro-mechanical interfaces used for connecting cables in telecommunications, data networks, and electronic systems. Their hot-swappable design and standardized dimensions enable rapid deployment and maintenance. These connectors maintain signal integrity while providing mechanical strain relief, playing critical roles in network infrastructure, consumer electronics, and industrial equipment.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
RJ116-position 2-conductor design, voice-grade transmissionResidential telephone lines
RJ458-position 8-conductor, supports up to 10GBASE-T EthernetLAN switches/routers
USB Type-ARectangular interface with 4-24 pins, supports USB 3.2 Gen2Computer peripherals
HDMI19-pin configuration, transmits uncompressed video/audioHome theaters/monitors
Fiber LCDuplex optical interface, supports 100Gbps+ transmissionData center backbone

3. Structure and Components

Typical construction includes: - Insulating housing (high-temp thermoplastic) - Conductive contacts (phosphor bronze with gold plating) - Latch retention mechanism - Wire termination points (IDC or solder) - EMI shielding layer The modular design allows tool-less installation while maintaining mechanical stability through polarization keys and retention clips.

4. Key Technical Specifications

ParameterTypical ValuesImportance
Insertion Loss<0.5dB @100MHzSignal quality preservation
Durability750-2000 mating cyclesLong-term reliability
Contact Resistance10-30m Power transmission efficiency
Insulation Resistance>500M Electrical safety
Operating Temp-40 C to +85 CEnvironmental adaptability

5. Application Fields

  • Telecom: PBX systems, DSL modems
  • IT Infrastructure: Server racks, PoE devices
  • Consumer Electronics: Smart TVs, gaming consoles
  • Industrial: PLC controllers, SCADA systems
  • Automotive: Telematics control units

6. Leading Manufacturers and Products

ManufacturerKey Products
TE ConnectivityCategory 8 RJ45 modules
AmphenolMilitary-spec circular connectors
MolexOptical LC duplex adapters
DelphiAutomotive-grade sealed jacks

7. Selection Guidelines

Key considerations: - Transmission speed requirements (e.g., Cat6a vs Cat8) - Environmental factors (temperature/humidity/vibration) - Mating cycle expectations - Shielding requirements (FTP vs UTP) - Backward compatibility needs - Cost vs performance trade-offs

8. Industry Trends

Development directions include: - 400Gbps+ optical interfaces - 0.8mm pitch miniaturization - Smart connectors with built-in sensors - PoE++ (90W+) capability integration - Bio-based polymer materials adoption The global market is projected to grow at 6.2% CAGR through 2030 driven by 5G and IoT deployments.

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