Modular Connectors - Jacks

Image Part Number Description / PDF Quantity Rfq
0440500002

0440500002

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

316

0855025008

0855025008

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

0

0432028924

0432028924

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0441500012

0441500012

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

0

0955016449

0955016449

Woodhead - Molex

CONN MOD JACK 4P4C R/A UNSHLD

91

0442480058

0442480058

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

0

0855135002

0855135002

Woodhead - Molex

CONN MOD JACK 6P6C VERT UNSHLD

17927

0432028917

0432028917

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

310

0446200002

0446200002

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

743

0438146421

0438146421

Woodhead - Molex

CONN MOD JACK 6P4C R/A UNSHLD

641

0955032884

0955032884

Woodhead - Molex

CONN MOD JACK 8P8C VERT UNSHLD

10929

0442480057

0442480057

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

647

0446610021

0446610021

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

2148

0956224881

0956224881

Woodhead - Molex

CONN MOD JACK 8P8C R/A SHIELDED

1492

0432024101

0432024101

Woodhead - Molex

CONN MOD JACK 4P4C R/A UNSHLD

0

0855135114

0855135114

Woodhead - Molex

CONN MOD JACK 6P6C VERT UNSHLD

0

0438600001

0438600001

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

285

0443800001

0443800001

Woodhead - Molex

CONN MOD JACK 8P8C R/A UNSHLD

1358

0437436001

0437436001

Woodhead - Molex

CONN MOD JACK 6P6C R/A UNSHLD

933

0955036671

0955036671

Woodhead - Molex

CONN MOD JACK 6P6C VERT UNSHLD

8966

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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