TDK ACT45L common-mode chokes for automotive Ethernet now available in Europe through TTI

Date
12/18/2015

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TDK ACT45L series

The latest common-mode chokes from TDK offer best-in-class noise suppression for automotive Ethernet, and is now available in Europe at TTI, a leading specialist distributor of electronic components. The TDK ACT45L series also boasts the smallest footprint of any common-mode choke currently available for automotive Ethernet applications, yet incorporates advanced technologies to deliver high reliability and consistent quality.

Ethernet is quickly becoming the preferred networking protocol for today’s multimedia infotainment in cars, but reliable high speed data transmission requires high noise suppression and low attenuation of data signals. Common-mode chokes protect vehicle ECUs from incoming EMI and suppress noise emissions radiated over the unshielded twisted-pair (UTP) cabling.

The noise suppression of the TDK ACT45L Series is presented as the best available on the market - between 15dB and 25dB better than existing products, over a broad frequency range up to 100MHz. Its footprint is a mere 4.5mm x 3.2 mm and insertion height just 2.8mm, the smallest common-mode choke for automotive Ethernet available in the world. The Series offers a rated inductance of 200µH and, importantly for all automotive components, operates over a wide temperature range of minus 40degC to +105degC.

The new ACT45L Series is designed to be manufactured using fully- automated processes: two auto windings and terminal electrodes are applied to the rectangular DR core., then a ferrite plate (SP core) is bonded to it with a highly temperature- and moisture-resistant adhesive to close the magnetic circuit. These fully-automated processes result in components with high reliability and consistent quality. Parts are fully-qualified to AEC-Q200.

Suitable automotive Ethernet applications for TDK ACT45L Series common-mode chokes include cameras, video, audio and navigation systems.

TTI

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