EMC components: World's smallest common-mode choke for automotive Ethernet

EMC components: World's smallest common-mode choke for automotive Ethernet

TDK Corporation presents a new series of common-mode chokes for automotive Ethernet that features the world's best common-mode noise suppression. Measuring in with a footprint of 4.5 mm x 3.2 mm and an insertion height of just 2.8 mm, the miniaturized ACT45L series is the world's smallest common-mode choke for automotive Ethernet and fulfills the standard's stiffest requirements. Mass production of the new common-mode choke starts in November 2013.

Ethernet, which supports data rates of up to 100 Mbit/s, is quickly becoming the networking protocol of choice for high-speed multimedia infotainment applications in cars. Because it employs lightweight unshielded twisted-pair (UTP) wires, automotive Ethernet is able to save space and weight. The specifications of the new automotive Ethernet standard with regard to common-mode noise suppression are significantly more demanding than the requirements of CAN and FlexRay. The higher the attenuation of the noise is, the better the performance of the common-mode choke. Thanks to TDK's advanced technologies, the of the ACT45L is 15 dB to 25 dB better than existing products over a broad frequency range up to 100 MHz.

The new ACT45L series is designed to be manufactured using fully-automated processes that include a high-precision autowinding process and the bonding of ferrite cores with a highly temperature- and moisture-resistant adhesive. The result is a new series of automotive components qualified to AEC-Q200 with high reliability and consistent quality.

The new product joins the existing ACT45B and ACT45R series of common-mode chokes for CAN and FlexRay, respectively, to form a highly versatile lineup of high-performance EMC components for automotive networks.

Main applications

Automotive Ethernet systems for in-vehicle multimedia and infotainment such as cameras for driver assistance, navigation systems and audio information applications

Main features and benefits

  • World's best common-mode suppression
  • World's smallest common-mode choke for automotive Ethernet with dimensions of 4.5 mm x 3.2 mm x 2.8 mm
  • Manufactured with fully-automated processes for high reliability and consistent quality
  • Qualified to AEC-Q200

Provided by TDK Corporation

Citation: EMC components: World's smallest common-mode choke for automotive Ethernet (2013, November 8) retrieved 8 December 2022 from https://phys.org/news/2013-11-emc-components-world-smallest-common-mode.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

EMC components: World's smallest common-mode filter for high-speed interfaces

0 shares

Feedback to editors