1840854-3 vs 0879-2C1R-54
| Part Number |
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| Category | Modular Connectors - Jacks With Magnetics | Modular Connectors - Jacks With Magnetics |
| Manufacturer | TRP Connector B.V. | Bel Fuse Inc. |
| Description | CONN MAGJACK 2PORT 100 BASE-T | CONN MAGJACK 2PORT 1000 BASE-T |
| Package | - | - |
| Series | MagJack? | MagJack? |
| Features | Board Guide, Decoupling Capacitance | Board Guide |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Through Hole | Through Hole |
| Applications | 10/100 Base-T, AutoMDIX | 10/100/1000 Base-T, AutoMDIX |
| Termination | Solder | Solder |
| Contact Material | Phosphor Bronze | Copper Alloy |
| Contact Finish | Gold | Gold |
| Orientation | 90° Angle (Right) | 90° Angle (Right) |
| Height Above Board | 1.004" (25.50mm) | 1.004" (25.50mm) |
| Connector Type | RJ45 | RJ45 |
| Shielding | Shielded, EMI Finger | Shielded, EMI Finger |
| Number of Rows | 2 | 2 |
| Number of Ports | 2 | 2 |
| LED Color | Green - Yellow | Green, Yellow - Green, Yellow |
| Tab Direction | Up and Down | Up and Down |
| Number of Cores per Jack | 4 | 8 |
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1. What are the main application scenarios of Modular Connectors - Jacks With Magnetics?
These connectors are widely used in Ethernet devices, industrial control systems, network routers, IP cameras, VoIP devices, and scenarios that require high reliability (such as military and aerospace fields).
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2. How to choose the right Modular Connectors - Jacks With Magnetics?
Factors to consider when choosing:
Number of ports: single-port, multi-port, or stacked configurations.
Speed support: such as 1Gb/s, 10Gb/s, or higher.
Mounting method: panel mount, onboard mount, or through-hole mount.
Shielding performance: whether EMI/RFI shielding is required. -
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. How to solve the compatibility issues of Modular Connectors - Jacks With Magnetics?
Ensuring that the connector is compatible with the cable, device and network standards is key. Choose products that comply with RoHS and IEC 60603-7 standards, and check whether their speed, PoE support and shielding performance meet the requirements.

