Categorization：Product Information
LAN Transformers and Modular Jack ConnectorsLAN Transformers from Wurth Elektronik Offer a Wide Range of Ethernet SolutionsLAN Transformers and Modular Jack Connectors from Wurth ElektronikPhoto Wurth Elektronik WE-LAN Transformers are designed with at least one transformer and one common-mode choke in each channel. The LAN transformer portfolio includes the WE-LAN series with up to 150 W of Power over Ethernet (PoE) and speeds of up to 1 Gbit/s. The WE-LAN series is available in 10GBase-T and PoE versions. More than four pairs of WE-LAN 10 G transformers with 10GBase-T and PoE+ are available with up to 150 W. The WE-LAN AQ transformers are manufactured in a fully automated process and offer Ethernet speeds of up to 1 Gbit/s. Würth Elektronik's WR-MJ modular jacks are available with a wide range of connector types that comply with Ethernet and other communication standards. The WR-MJ modular jacks from Würth Elektronik offer a wide range of connector types that comply with Ethernet and other communication standards. Modular jack connectors are connectors for local data communications.The WR-MJ connectors are available in a variety of versions ranging from plastic to shielded options in vertical, horizontal, 45 degree and 47.5 degree orientations. The jack design is FCC compliant and compatible with IEEE standards IEEE 802.3u, 802.3z (8P8C RJ45) and PoE compliant according to IEEE 802.3af, 802.3at (8P8C RJ45) Würth Elektronik also offers the WE-RJ45 LAN Transformer, with built-in RJ45 connector and Würth Elektronik also offers the WE-RJ45 LAN transformer with built-in RJ45 connector and integrated transformer/common-mode choke, available in various configurations, THT and SMT, and with or without LEDs.The WE-RJ45 LAN features PoE up to 50 W and speeds up to 10 Gbit/s.
1. Characterization table related to Wurth Elektronik/LAN transformers and modular jack connectors:
| Application Notes: | LAN transformer characterization: |
| ANP116: Gigabit Ethernet Interface from an EMC Perspective | Compliant with IEEE 802.3 standards: 802.3af, 802.3u, 802.3ab, 802.3at, 802.3bt, 802.3an |
| RD016: Reference Design Gigabit Ethernet Front End | SMT |
| ANE008: Hot Swapping of PoE Modular Sockets | 120 µH to 350 µH inductance |
| ANP078: WE-RJ45 LAN for through-hole reflow soldering | 1:1 ±2% turns ratio |
| -1.1 dB Insertion Loss Typical 1 MHz to 100 MHz | |
| -38 dB typical crosstalk from 1 MHz to 100 MHz | |
| 1 MHz to 100 MHz -38 dB Differential to Common Mode Rejection Typical | |
| Return Loss: | |
| 30 MHz -18 dB min. | |
| 60 MHz -14 dB min. | |
| 80 MHz -12 dB min. | |
| 100 MHz down -10 dB min值 | |
| WR-MJ Modular Jack Connector Features: | |
| Jack design meets FCC regulations | |
| Match all FCC plugs | |
| 4P4C, 6P2C, 6P4C Sum 8P8C Placement | |
| Maximum Stacking 2 x 6 | |
| Ethernet, Cat 3, Cat 5, Cat 6 and Cat 6a | |
| Discrete Solution for Ethernet Protocol (8P8C RJ45) | |
| smaller package | |
| High flexibility in PCB design | |
| THR Compatibility | |
| Potentially better crosstalk performance | |
| WE-RJ45 LAN characteristics: | |
| RJ45 Connector with Integrated Transformer/Common Mode Choke | |
| PoE up to 50 W at speeds up to 10 Gbit/s | |
| Offers SMT and THT | |
| Standards compliance: IEEE 802.3u, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3at and IEEE 802.3bt | |
| Improved common mode rejection (CMRR) due to the addition of a nickel-zinc core |
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