December 2018 : ACT45L-201-2P-TL000 listed on this page is a not-recommended for new design.As sensor and camera based devices become more and more common in automobiles, Ethernet technology has been introduced at a rapid pace as automotive LAN systems for advanced multimedia and data communication devices. TDK developed the ACT45L type of common mode filters for Ethernet, which has achieved excellent noise suppression characteristics in a small and low-profile form.

The interior of an automobile is an extremely noisy electrical environment, and common mode filters are therefore used as an EMC counter-measure in automotive LANs. In order to respond to the market need to conserve space in ECU circuit boards, TDK has developed ACT1210 type common mode filters for automotive LANs, which are small and high-performance filters that radically reduce mounting area space.

TDK has developed TCM0403R common mode filters, which have realized a significant size reduction compared to the existing thin-film common mode filters. This size reduction was made possible through the application of unique thin-film processing techniques, developed for HDD heads. These filters are ideal as a noise suppression measure in mobile devices such as smartphones and tablets, for which conservation of space is demanded.