Wurth Elektronik - WE-RJ45 LAN Connectors with Integrated Transformers. The WE-RJ45 series from Wurth Elektronik offers a wide range of RJ45 connectors with integrated transformers. The range is available in SMD, THT and THT with USB and features a compact, robust design ideal for the wide variety of applications it can be used with. Applications. Embedded computing Modems, hubs, routers, switches M2M communication IoT EtherCAT