Modular Connectors - Jacks With Magnetics

Image Part Number Description / PDF Quantity Rfq
ARJU21A-MCSA-AD-B-EMU2

ARJU21A-MCSA-AD-B-EMU2

Abracon

CONN JACK 1PORT 100 BASE-TX PCB

1021

ARJM11B1-502-AB-ER2-T

ARJM11B1-502-AB-ER2-T

Abracon

CONN JACK 1PORT 1000 BASE-T PCB

624

J1N-0004NL

J1N-0004NL

PulseLarsen Antenna

CONN JACK 4PORT 1000 BASE-T PCB

0

J3011G21DNLT

J3011G21DNLT

PulseLarsen Antenna

CONN JACK 1PORT 100 BASE-TX SMD

3385

ARJ11E-MCSC-A-B-FL2

ARJ11E-MCSC-A-B-FL2

Abracon

CONN JACK 1PORT 1000 BASE-TX PCB

0

0826-1A4T-23-F

0826-1A4T-23-F

Bel Fuse, Inc.

CONN JACK 4PORT 1000 BASE-T PCB

0

C850-2G8R-54

C850-2G8R-54

Bel Fuse, Inc.

CONN JACK 16PORT 1000 BASE-T PCB

0

ARJM11A1-805-AB-ER2-T

ARJM11A1-805-AB-ER2-T

Abracon

CONN JACK 1PORT 2.5G BASE-T PCB

0

ARJE-0025

ARJE-0025

Abracon

CONN JACK 1PORT 1000 BASE-T PCB

0

ARJ11E-MBSB-A-B-FM2

ARJ11E-MBSB-A-B-FM2

Abracon

CONN JACK 1PORT 1000 BASE-TX PCB

0

7499110124

7499110124

Würth Elektronik Midcom

CONN JACK 1PORT 1000 BASE-T PCB

570

ARJ-150C

ARJ-150C

Abracon

CONN JACK 1PORT 1000 BASE-T PCB

0

L826-1X1T-43-F

L826-1X1T-43-F

Bel Fuse, Inc.

CONN JACK 1PORT 1000 BASE-T PCB

0

7499011002A

7499011002A

Würth Elektronik Midcom

CONN JACK 1PORT 100 BASE-T PCB

0

ARJ11G-MASA-A-B-ELT2

ARJ11G-MASA-A-B-ELT2

Abracon

CONN JACK 1PORT 100 BASE-T PCB

313

J1026F01PNL

J1026F01PNL

PulseLarsen Antenna

CONN JACK 1PORT 100 BASE-TX PCB

1255

G1LX-188S7-BB-YG1-50

G1LX-188S7-BB-YG1-50

Kycon

CONN JACK 1PORT 100 BASE-T PCB

1055

ARJ11B-MASBQ-MU2

ARJ11B-MASBQ-MU2

Abracon

CONN JACK 1PORT 100 BASE-T PCB

0

JXC0-1015NL

JXC0-1015NL

PulseLarsen Antenna

CONN JACK 2PORT 1000 BASE-T PCB

0

L8BJ-1K1T-KDE

L8BJ-1K1T-KDE

Bel Fuse, Inc.

CONN JACK 1PORT 2.5G BASE-T PCB

30

Modular Connectors - Jacks With Magnetics

1. Overview

Modular connectors with integrated magnetics are hybrid components combining standard modular jack interfaces (e.g., RJ45) with built-in magnetic circuits. These devices enable signal transmission while providing galvanic isolation and noise suppression. They are critical in Ethernet communications, industrial networking, and telecommunication systems where signal integrity and electromagnetic compatibility (EMC) are essential.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
RJ45 MagJackIntegrated common-mode chokes, 10/100/1000BASE-T supportEthernet switches, routers
Surface Mount MagJackLow-profile SMD design, reduced PCB footprintIndustrial IoT devices
High-Speed MagJackUp to 10GBASE-T support, optimized for <1GHz frequenciesData center servers
POE-Enabled MagJackSupports Power-over-Ethernet (PoE/PoE+)IP cameras, VoIP phones

3. Structure and Components

Typical construction includes: - Plastic housing (LCP/PBT materials) with integrated latch mechanism - Precision-machined copper alloy contacts (gold-plated for durability) - Toroidal magnetic cores for common-mode noise suppression - PCB mounting terminals with insulation displacement design - Shielding cage for EMI protection in high-speed variants

4. Key Technical Specifications

ParameterTypical ValueImportance
Frequency Range100MHz-1GHzDetermines data transmission rate
Insulation Resistance>1G Ensures electrical safety
Rated Current1.5A per contactPOE power handling capability
VSWR<1.3:1Measures signal integrity
Mechanical Life500-1000 mating cyclesProduct durability

5. Application Fields

Primary applications across: - Telecommunications: Central office switches, DSLAMs - Industrial Automation: PLCs, SCADA systems - Consumer Electronics: Smart TVs, gaming consoles - Transportation: In-vehicle networking, railway control systems - Medical Devices: MRI machines, patient monitoring equipment

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
TE Connectivity1-1418809-310GBASE-T support, -40 C to +85 C rating
Amphenol51001001Integrated LED indicators, PoE++ compatible
Molex0878650011Shielded design, 1.27mm pitch SMD
Bel Stewart94330101EAuto-transformer function, UL94 V-0 rating

7. Selection Guidelines

Key considerations: 1. Electrical Requirements: Match data rate and PoE specifications 2. Mechanical Constraints: Check PCB footprint and mating dimensions 3. Environmental Factors: Temperature range and humidity resistance 4. Compliance: Verify IEEE 802.3 and RoHS certifications 5. Cost-Performance Ratio: Balance durability with budget limitations

8. Industry Trends

Current development trends include: - Migration to 25/100GBASE-T for data centers - Miniaturization for mobile device integration - Enhanced PoE support (up to 71W) - Integration with active circuitry (smart jacks) - Development of eco-friendly lead-free soldering solutions

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