Modular Connectors - Jacks

Image Part Number Description / PDF Quantity Rfq
0955016649

0955016649

Woodhead - Molex

CONN MOD JACK 6P4C R/A UNSHLD

1759

0428784218

0428784218

Woodhead - Molex

CONN MOD JACK 4P4C VERT UNSHLD

2379

0955012641

0955012641

Woodhead - Molex

CONN MOD JACK 6P4C R/A UNSHLD

1891

0438600025

0438600025

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

1704

0441500022

0441500022

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

1300530004

1300530004

Woodhead - Molex

CONN MOD JACK 8P8C UNSHIELDED

0

0955016889

0955016889

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

0

0441440005

0441440005

Woodhead - Molex

CONN MOD JACK 6P6C R/A UNSHLD

172

0855135004

0855135004

Woodhead - Molex

CONN MOD JACK 4P4C VERT UNSHLD

0

0432026105

0432026105

Woodhead - Molex

CONN MOD JACK 6P4C R/A UNSHLD

1475

0432498911

0432498911

Woodhead - Molex

CONN MOD JACK 8P10C R/A SHIELDED

0

0855105118

0855105118

Woodhead - Molex

CONN MOD JACK 6P4C VERT UNSHLD

0

0955222447

0955222447

Woodhead - Molex

CONN MOD JACK 4P4C VERT UNSHLD

1957

0438600016

0438600016

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0432028104

0432028104

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

1194

0428788456

0428788456

Woodhead - Molex

CONN MOD JACK 8P8C VERT UNSHLD

218

0428786218

0428786218

Woodhead - Molex

CONN MOD JACK 6P6C VERT UNSHLD

3723

0955012611

0955012611

Woodhead - Molex

CONN MOD JACK 6P6C R/A UNSHLD

3024

0855115001

0855115001

Woodhead - Molex

CONN MOD JACK 8P8C VERT UNSHLD

0

0955012441

0955012441

Woodhead - Molex

CONN MOD JACK 4P4C R/A 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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