0826-1G4T-23-F vs 0879-2C1R-54
| Part Number |
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| Category | Modular Connectors - Jacks With Magnetics | Modular Connectors - Jacks With Magnetics |
| Manufacturer | Bel Fuse Inc. | Bel Fuse Inc. |
| Description | CONN MAGJACK 4PORT 1000 BASE-T | CONN MAGJACK 2PORT 1000 BASE-T |
| Package | - | - |
| Series | MagJack? | MagJack? |
| Features | Board Guide | Board Guide |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Through Hole | Through Hole |
| Applications | 10/100/1000 Base-T, AutoMDIX | 10/100/1000 Base-T, AutoMDIX |
| Termination | Solder | Solder |
| Contact Material | Copper Alloy | Copper Alloy |
| Contact Finish | Gold | Gold |
| Orientation | 90° Angle (Right) | 90° Angle (Right) |
| Height Above Board | 0.535" (13.59mm) | 1.004" (25.50mm) |
| Connector Type | RJ45 | RJ45 |
| Shielding | Shielded, EMI Finger | Shielded, EMI Finger |
| Number of Rows | 1 | 2 |
| Number of Ports | 4 | 2 |
| LED Color | Green - Green | Green, Yellow - Green, Yellow |
| Tab Direction | Up | Up and Down |
| Number of Cores per Jack | 12 | 8 |
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1. What are Modular Connectors - Jacks With Magnetics?
Modular Connectors - Jacks With Magnetics are modular connectors with integrated magnetic components, mainly used in high-speed data transmission scenarios such as Ethernet. Magnetic components (such as transformers and filters) are used for signal isolation, impedance matching and anti-electromagnetic interference (EMI), ensuring the stability and reliability of data transmission.
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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 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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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.

