The LPJG4801DNL 1000Base-T RJ45 connector with integrated magnetics is a high-performance RJ45 MagJack designed for Gigabit Ethernet applications. Engineered for stable signal integrity, compact PCB integration, and industrial reliability, this connector integrates magnetics directly into the RJ45 port—eliminating the need for external transformers.
It is widely used in:
- SOHO networking equipment (ADSL modems)
- LAN-on-Motherboard (LOM)
- Ethernet switches and hubs
If you're designing Gigabit Ethernet ports without LED and EMI spring requirements, LPJG4801DNL is a cost-effective and reliable solution.
LPJG4801DNL 1x1 RJ45 MagJack Key Specifications
- Part Number: LPJG4801DNL
- Product Type: RJ45 Connector with Integrated Magnetics (RJ45 MagJack)
- Data Rate: 1000Base-T (Gigabit Ethernet)
- Port Configuration: 1×1
- Mounting Type: Through Hole (THT)
- Soldering: Wave Solder Compatible
- Latch Type: Down
- PoE Support: Non-PoE
- LED: Not included
- EMI Spring Finger: Not included
- Operating Temperature: -40°C to +85°C
Electrical Specifications
| Parameter |
Specification |
| Turn Ratio |
1CT:1CT ±5% |
| OCL |
≥350µH @100KHz, 0.1V |
| Insertion Loss |
-1.2dB Max (1–100MHz) |
| Return Loss |
-16dB to -8dB |
| Crosstalk |
≤ -30dB |
| Common Mode Rejection |
≤ -30dB |
| Isolation Voltage |
1500Vrms |
| Standard Compliance |
IEEE 802.3 |
These parameters ensure reliable Gigabit Ethernet performance in high-speed networking environments.
LPJG4801DNL Magnetic RJ45 Connector Mechanical Design & PCB Layout
RJ45 Connector Dimensions
- Compact 1×1 port design
- Optimized for high-density PCB layouts
Recommended PCB Layout
- Standard THT footprint
- Wave solder compatible (250°C / 5s)
- Designed for automated assembly
Material and Build Quality
The LPJG4801DNL is built using industrial-grade materials:
- Housing: PBT + 30% Glass Fiber (UL94V-0)
- Contacts: Phosphor Bronze
- Pins: Brass
- Shield: SUS 304 Stainless Steel
- Gold Plating: ≥6 micro-inches
This ensures durability, corrosion resistance, and long-term electrical stability.
Why Choose RJ45 MagJack with Integrated Magnetics?
1. Simplified PCB Design
Traditional Ethernet designs require external transformers. The LPJG4801DNL integrates magnetics, reducing:
- Component count
- PCB footprint
- Design complexity
2. Improved Signal Integrity
With built-in magnetics, the connector ensures:
- Better impedance matching
- Reduced EMI
- Stable Gigabit transmission
3. Cost Optimization
- Fewer external components
- Lower assembly cost
- Faster production cycle
How to Select the Right RJ45 MagJack
When choosing a 1000Base-T RJ45 connector with integrated magnetics, consider:
- Data Rate Requirement: 10/100 vs 1000Base-T
- LED Requirement: LPJG4801DNL: No LED (cost-saving design)
- EMI Protection: Without EMI spring → suitable for shielded designs
- PoE Support: This model is non-PoE
- Temperature Range: Industrial: -40°C to +85°C
FAQ About LPJG4801DNL RJ45 MagJack
1. What is an RJ45 connector with integrated magnetics?
It is a connector that combines RJ45 interface + transformer + filtering circuits into a single module.
2. Does LPJG4801DNL support PoE?
No, this model is designed for non-PoE applications.
3. Can it be used in Gigabit Ethernet?
Yes, it fully supports 1000Base-T networks compliant with IEEE 802.3.
4. Why choose a no-LED RJ45 connector?
- Lower cost
- Reduced power consumption
- Suitable for internal or embedded systems
Conclusion: Is LPJG4801DNL the Right RJ45 MagJack for You?
The LPJG4801DNL 1000Base-T RJ45 MagJack is an excellent choice if you need:
- ✔ Reliable Gigabit Ethernet performance
- ✔ Integrated magnetics for simplified design
- ✔ Industrial temperature support
- ✔ Cost-effective solution without LED and EMI spring
For engineers and buyers seeking a stable, compact, and production-ready RJ45 connector, LPJG4801DNL delivers strong value.
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LPJG4801DNL 1000Base-T Magnetic RJ45 Connector Without LED Images
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