Modular Connectors - Jacks

Image Part Number Description / PDF Quantity Rfq
0855105120

0855105120

Woodhead - Molex

CONN MOD JACK 8P8C VERT UNSHLD

62

0432028916

0432028916

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

101

0438600006

0438600006

Woodhead - Molex

CONN MOD JACK 6P4C R/A SHIELDED

196

0432238176

0432238176

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

175

0955012821

0955012821

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

47

0955012401

0955012401

Woodhead - Molex

CONN MOD JACK 4P4C R/A UNSHLD

9329

0855135009

0855135009

Woodhead - Molex

CONN MOD JACK 8P8C VERT UNSHLD

0

0955032441

0955032441

Woodhead - Molex

CONN MOD JACK 4P4C VERT UNSHLD

18

0855055113

0855055113

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

4740

0955036651

0955036651

Woodhead - Molex

CONN MOD JACK 6P4C VERT UNSHLD

83

0424106168

0424106168

Woodhead - Molex

CONN MOD JACK 6P6C VERT UNSHLD

1455

0855135116

0855135116

Woodhead - Molex

CONN MOD JACK 4P4C VERT UNSHLD

0

0441930005

0441930005

Woodhead - Molex

CONN MOD JACK 6P6C R/A UNSHLD

829

0438600020

0438600020

Woodhead - Molex

CONN MOD JACK 6P2C R/A UNSHLD

2411

0445600014

0445600014

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

201

0855135001

0855135001

Woodhead - Molex

CONN MOD JACK 8P8C VERT UNSHLD

502

0855045001

0855045001

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

349

0438600010

0438600010

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

3260

0438600003

0438600003

Woodhead - Molex

CONN MOD JACK 6P4C R/A UNSHLD

0

0955222667

0955222667

Woodhead - Molex

CONN MOD JACK 6P6C VERT UNSHLD

0

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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