Shrink Autonomous Vehicle Cameras With World’s Smallest Common-mode Chokes


TDK has claimed the smallest common-mode choke for automotive Ethernet applications. Typical applications include onboard cameras that can be further miniaturized and designed for even higher operating temperatures.

Measuring just 3.2 x 2.5 x 2.5 mm, the ACT1210L measures just half the size of the existing ACT45L choke which measures 4.5 x 3.2 x 2.8 mm.

Despite the 50 percent reduction in size, the ACT1210L choke is said to have an excellent Scd21 mode conversion characteristic that is equivalent to that of the existing ACT45L. This key parameter expresses the amplitude relationship between differential and common-mode signal and should be as large as possible.

The choke is suitable for automotive applications, thanks to a wide temperature range from -40 °C to +125 °C. TDK plans to offer components for an even wider temperature range in order to further simplify the design of high-speed communication systems for vehicles.

Series production of the new common-mode chokes starts in June 2017.

For further details, view the full Press release.

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