LAN transformer targeted at EtherCAT, Profinet applications

The new LAN transformer from Würth Elektronik has been manufactured in a fully automated process, and it offers a compact design and robust electrical properties. The eiSos transformer extends the capabilities of the company’s WE-LAN AQ series for industrial Ethernet applications.

It replaces the wound toroid cores in the existing WE-LAN AQ series with SMD solderable transformers and common-mode choke elements. As a result, the low return loss attenuation provides the device with a better signal yield.

The WE-LAN AQ series of transformers — compatible with conventional LAN products — are specified for the industrial temperature range of –40°C to 85°C. Würth is targeting its new transformers at EtherCAT and Profinet systems mostly used in factory automation environments.

The eiSos LAN transformer offers pin- and pad-compatible components for conventional standard packages with a low height of 4 mm for the 10/100 Base-T variant and 4.25 mm for the 1,000 Base-T variant. And the availability of lateral half-vias means that their solder joints can be inspected in SMT production using automated optical inspection (AOI).