Modular Connectors - Jacks

Image Part Number Description / PDF Quantity Rfq
0443801018

0443801018

Woodhead - Molex

CONN MOD JACK 6P4C R/A SHIELDED

0

0441440023

0441440023

Woodhead - Molex

CONN MOD JACK 8P2C R/A UNSHLD

0

0442820012

0442820012

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0441440006

0441440006

Woodhead - Molex

CONN MOD JACK 8P4C R/A UNSHLD

0

0441500002

0441500002

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

0

0520186426

0520186426

Woodhead - Molex

CONN MOD JACK 6P4C R/A UNSHLD

0

0432236013

0432236013

Woodhead - Molex

CONN MOD JACK 6P6C R/A UNSHLD

0

0428788744

0428788744

Woodhead - Molex

CONN MOD JACK 8P6C VERT UNSHLD

0

0442820010

0442820010

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0441703004

0441703004

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0438601012

0438601012

Woodhead - Molex

CONN MOD JACK 6P4C R/A SHIELDED

0

0442480005

0442480005

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

0

0424109416

0424109416

Woodhead - Molex

CONN MOD JACK 8P2C VERT UNSHLD

0

0438600019

0438600019

Woodhead - Molex

CONN MOD JACK 8P4C 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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