LPJ26204ADNL — Compact 1×2 RJ45 Magjack for Reliable 10/100 Ethernet

🛑 Introduction

The LPJ26204ADNL from LINK-PP is a compact dual-port 1×2 RJ45 Magjack designed for space-constrained networked devices requiring dependable 10/100Base-T connectivity. Featuring integrated magnetics, robust metal shielding, and clear yellow/green LED indicators, it offers an effective combination of signal integrity, EMI performance, and mechanical reliability for commercial, industrial, and medical applications.

Integrated magnetics reduce the distance between the transformer and the connector, improving EMC behavior and lowering component count. For designers working with limited PCB space or strict EMI requirements, a dual-port Magjack like the LPJ26204ADNL streamlines Ethernet interface design while maintaining compliance with IEEE 802.3 Fast Ethernet specifications.

🛑 Key Takeaways

  • The LPJ26204ADNL 1x2 RJ45 Magjack features a dual-port design, enabling you to connect two Ethernet cables in a compact space, thereby saving valuable board area.

  • Integrated magnetics enhance data transmission reliability by reducing electrical noise, simplifying your design and assembly process.

  • LED indicators provide quick status checks for your Ethernet connections, enabling you to troubleshoot issues without additional tools.

  • Through-hole mounting ensures strong mechanical stability, making the connector ideal for devices that experience vibration or movement.

  • The LPJ26204ADNL meets strict industry standards, ensuring safety and reliability in networking, medical, and industrial applications.

🛑 1x2 RJ45 Magjack Key Specifications

Attribute

Value

Part Number

LPJ26204ADNL

Configuration

1×2 dual-port RJ45, side-entry

Speed

10/100Base-T Fast Ethernet

Electrical Design

Integrated magnetics with isolation transformers and common-mode chokes

LED Indicators

Yellow/Green link & activity LEDs

Contact Type

8P8C with gold-plated mating area

Mounting

Through-hole with mechanical retention posts

Shielding

Full metal shell with chassis grounding tabs

Turns Ratio

1CT:1CT (RX/TX)

Operating Temperature

0°C to 70°C

Compliance

IEEE 802.3, RoHS, REACH

Mechanical Data

The manufacturer's mechanical drawing is available

Explore the LPJ26204ADNL Now!

Discover how the LPJ26204ADNL can enhance your networking solutions with reliable performance and compact design.

🛑 Application Advantages

1. Medical Devices

The combination of EMI-resistant magnetics, reliable mechanical retention, and clear LED indicators makes this connector suitable for patient monitoring equipment, portable diagnostic tools, and other electrically sensitive systems.

2. Industrial & Embedded Networking

Compact gateways, industrial controllers, and measurement instruments benefit from the dual-port density and simplified Ethernet circuitry. Integrated magnetics reduce external components and enhance long-term reliability in harsh environments.

3. Compact Consumer & Commercial Equipment

Routers, mini-switches, IoT hubs, and edge devices gain PCB savings, easier assembly, and improved EMC performance.

🛑 Installation Tips

Installation Tips

▷ Mounting Guidelines

You want your LPJ26204ADNL Magjack to stay secure and work reliably. Proper mounting helps you achieve this goal. Start by using through-hole mounting for strong mechanical support. Place the connector at a 90° angle to the PCB for easy cable access and neat routing.

Follow these best practices to improve mechanical reliability:

  • Use rubber or silicone grommets between the PCB and fasteners. These absorb vibrations and protect your board.

  • Add adhesive damping pads or foam between the PCB and the enclosure. This step further reduces vibration impact.

  • Tighten all mounting points securely. Use lock washers or thread-locking compounds to prevent loosening over time.

  • Position non-plated through holes (NPTH) to spread out vibrational forces across the board.

  • Distribute the load across multiple NPTH to avoid overloading any single point.

  • Design NPTH with slightly larger diameters than the fasteners. This allows for minor misalignments during assembly.

  • Reinforce the area around NPTH if your PCB will face high mechanical stress.

  • Make sure NPTH has enough clearance for thermal expansion of the PCB.

Tip: Careful mounting extends the life of your connector and keeps your network stable.

▷ Layout Best Practices

A good PCB layout makes installation easier and improves performance. Place the Magjack near the edge of your board for simple cable management. Leave enough space around the connector for soldering and inspection.

You may encounter some common issues during installation. Use the table below to help you troubleshoot:

Issue Description

Recommended Solution

Wireless adapter not detected

Ensure the adapter is properly plugged in. Check Device Manager for detection status.

Driver installation issues

Remove old drivers before installing new ones. Follow the installation guide steps.

The installation process is taking too long

Wait patiently. If it takes more than 20 minutes, contact technical support.

Confirming successful installation

Check the installation steps. If unsuccessful, follow the troubleshooting guide.

You can also use the yellow and green LED indicators to monitor connection status. A steady light means a good link. Blinking shows data activity. If the LEDs do not light up, check your solder joints and cable connections.

Note: Careful layout and monitoring help you catch problems early and keep your network running smoothly.

🛑 Design and Layout Recommendations

1. Follow magnetic keep-out guidelines
Although integrating the transformer inside the connector reduces layout complexity, magnetic areas should remain free of high-speed copper and stitching vias that could introduce unwanted coupling.

2. Proper shield grounding
The LPJ26204ADNL includes metal tabs for chassis ground. Bonding the shield correctly helps mitigate radiated emissions and improves ESD tolerance.

3. Add ESD and surge protection
For devices connected to uncontrolled environments, TVS protection near the connector—aligned with PHY vendor guidelines—is recommended for robust system-level protection.

4. Validate thermal and mechanical compatibility
The connector’s 0–70°C rating fits most commercial systems. For extended-temperature designs, confirm alignment with system requirements or evaluate compatible variants.

🛑 Why Choose the LPJ26204ADNL?

Why Choose the LPJ26204ADNL?

The LPJ26204ADNL offers an ideal balance of compact size, integrated magnetics, dual-port density, and excellent EMI performance, making it suitable for next-generation connected devices that demand reliability without sacrificing board space.

Its integrated design lowers BOM cost, accelerates layout work, and ensures stable Ethernet performance across a wide range of professional applications—from industrial automation to medical instrumentation and embedded networking products.

🛑 FAQ

What devices can use the LPJ26204ADNL 1x2 RJ45 Magjack?

You can use this Magjack in network switches, routers, medical devices, and industrial controllers. Its compact size and certifications make it suitable for many applications that need reliable Ethernet connections.

How do the LED indicators help you?

The yellow and green LEDs show you the link and activity status. You can quickly check if your Ethernet connection works or if data transfers. This feature helps you troubleshoot network issues fast.

Does the LPJ26204ADNL support both 10 and 100 Mbps speeds?

Yes, you can use this connector for both 10 Mbps and 100 Mbps Ethernet. It meets IEEE 802.3 standards, so you get stable performance at both speeds.

What makes through-hole mounting a good choice?

Through-hole mounting gives you strong mechanical support. You can use it in devices that face vibration or movement. This method also makes assembly and repairs easier.

Is the LPJ26204ADNL safe for medical and industrial use?

Yes!
You get a connector that meets RoHS, REACH, UL, ISO9001, and ISO14001 standards. You can trust it in sensitive environments like hospitals and factories.

🛑 See Also

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