L811-1X1T-03-F vs 0857290101
| Part Number |
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| Category | Modular Connectors - Jacks With Magnetics | Modular Connectors - Jacks With Magnetics |
| Manufacturer | Bel Fuse Inc. | Molex |
| Description | CONN MAGJACK 1PORT 100 BASE-T | CONN MAGJACK 8PORT 1000 BASE-T |
| Package | - | - |
| Series | MagJack? | Hyperjack 1000, 85729 |
| Features | Board Guide | Board Guide |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Through Hole | Through Hole |
| Applications | 10/100 Base-T | 10/100/1000 Base-T, AutoMDIX, Power over Ethernet+ (PoE+) |
| Termination | Solder | Solder |
| Contact Material | Copper Alloy | Copper Alloy |
| Contact Finish | Gold | Gold |
| Orientation | 90° Angle (Right) | 90° Angle (Right) |
| Height Above Board | 0.490" (12.45mm) | 1.002" (25.46mm) |
| Connector Type | RJ45 | RJ45 |
| Shielding | Shielded, EMI Finger | Shielded, EMI Finger |
| Number of Rows | 1 | 2 |
| Number of Ports | 1 | 8 |
| LED Color | Does Not Contain LED | - |
| Tab Direction | Down | Up and Down |
| Number of Cores per Jack | 5 | - |
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1. Why do we need to integrate magnetic components?
The main purpose of integrated magnetic components is to meet the requirements of Ethernet standards such as 10/100/1000 Base-T and PoE. Magnetic components provide electrical isolation, signal balance and transient protection, while reducing electromagnetic interference (EMI), ensuring the stability of high-speed data transmission.
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2. What Ethernet standards do Modular Connectors - Jacks With Magnetics support?
These connectors typically support 10/100/1000 Base-T, 2.5Gb/s, 5Gb/s, and 10Gb/s Ethernet standards, and are compatible with PoE (Power over Ethernet) Type 1 to Type 4.
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3. What is PoE support? Why is it important?
PoE (Power over Ethernet) allows data and power to be transmitted simultaneously over Ethernet cables, reducing wiring complexity. Modular Connectors - Jacks With Magnetics support PoE and are suitable for devices that require remote power supply (such as IP cameras and VoIP phones).
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4. Are Modular Connectors - Jacks With Magnetics complicated to install and maintain?
The installation is relatively simple and can usually be completed with standard tools (such as crimping tools). In terms of maintenance, due to its modular design, it is very convenient to replace or upgrade the connector, which is suitable for field installation and repair (MRO) scenarios.
