Integrated RJ45 Connector

An integrated RJ45 connector — also called a MagJack, an ICM, or an RJ45 jack with transformer — places the isolation transformer and common-mode choke inside the connector shell instead of on the PCB. That frees the board area the discrete magnetics would take and keeps the pairs short between jack and PHY. TeleWire Technology manufactures 449 of them in Taiwan.

  • Line rate — 10/100 through 10G Base-T. The magnetics are wound for the rate.
  • Power — PoE (15.4 W), PoE+ (30 W), PoE++ (60–90 W) at the PSE.
  • Shielding — with EMI grounding fingers for a bezel bond, or shielded through the board.
  • Ports — 1x1 to 2x8, right-angle or vertical, low-profile where height is fixed.

Cross-references cover Halo, Bel Fuse, Pulse, Würth Elektronik, TE Connectivity, Amphenol, UDE, YDS, Hanrun and Bothhand.

RJ Jack with Transformer (Magnetic) - TeleWire Technology
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Taiwan Factory
Direct Manufacturing
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TE Connectivity Alternative
Cross-Reference Support

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Flexible Gold Plating Options (Flash to 50u")
Advanced EMI & RFI Shielding
High-Power PoE/PoE++ Capabilities
Pin-to-Pin Cross Compatibility
Same-day engineering review
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Industry Applications

Proven Performance Across Industries

Industrial Automation

Ruggedized RJ45 MagJacks designed for PLCs, HMI panels, and robotic controllers that require resistance to vibration and electrical noise.

IP Surveillance & Security

High-reliability PoE and PoE++ connectors capable of powering 4K IP cameras, NVRs, and access control systems over a single Ethernet cable.

IoT & Smart Gateways

Compact, low-profile integrated connectors optimized for smart home hubs, IoT gateways, and environmental sensors.

Pro Audio & Video

Shielded connectors ensuring interference-free audio/video signal transmission for digital mixers, stage boxes, and AV over IP extenders.

Networking & Telecommunications

High-speed 2.5G, 5G, and 10G Base-T solutions for enterprise switches, routers, and servers requiring maximum bandwidth and minimal latency.

Medical Instrumentation

Precision connectors with high isolation protection for patient monitoring systems and diagnostic equipment where data accuracy is life-critical.

Why Choose Our Integrated RJ45 Modular Jacks?

High-Speed Support

Verified performance for 100Mb, 1Gb, 2.5Gb, 5Gb, and 10Gb Ethernet applications. Guaranteed signal integrity.

Power over Ethernet

Fully compatible with PoE, PoE+, and PoE++ (IEEE 802.3bt) for powering IP cameras, access points, and IoT devices.

Cross-Compatibility

Precise pin-to-pin compatible alternatives to expensive parts from Amphenol, TE Connectivity, and Belfuse. Optimize BOM costs without redesigning.

Industrial Grade

Operating temperatures from -40°C to +85°C. High vibration resistance for industrial automation and machinery.

Why Choose Our Integrated RJ45 Modular Jacks?

Technical FAQs

Common questions from procurement and engineering teams.

What is the advantage of an Integrated RJ45 (ICM) over a discrete solution?

An Integrated Connector Module (ICM) houses the magnetic components (transformers and chokes) inside the RJ45 jack itself. This saves significant PCB space, simplifies board layout design, reduces EMI interference, and improves field reliability compared to using a separate connector and discrete magnetic module.

Can TeleWire RJ45 connectors replace parts from TE, Amphenol, or Pulse?

We manufacture RJ45 connectors that serve as direct cross-reference replacements for many standard parts from TE, Amphenol, and Belfuse. We can match the footprint, pinout, and electrical specifications (including PoE capabilities) to ensure a drop-in replacement for your existing BOM.

Do you offer custom RJ45 configurations for specific LED or shielding requirements?

Yes. As a Taiwan-based manufacturer, we offer customization for bulk orders. This includes modifying LED color combinations, shield EMI finger styles, gold plating thickness (up to 50u"), and magnetic schematics to suit specific PHY chips.

Do you offer samples for testing and validation?

Yes, we support OEM/ODM projects with samples for engineering validation. For standard "catalogue" parts, samples can often be shipped within 48 hours. For custom specifications (e.g., specific LED colors or magnetics), we can produce prototypes quickly due to our in-house engineering in Taiwan.

What PoE standards do your integrated connectors support?

Our product line covers the full spectrum of Power over Ethernet standards. We offer jacks compatible with PoE (IEEE 802.3af - 15.4W),PoE+ (IEEE 802.3at - 30W), and PoE++ (IEEE 802.3bt - up to 100W). We use specialized wire insulation and magnetic core materials to prevent saturation and overheating under high current loads.