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Murata - Inductors with broadband impedance for in-vehicle PoC systems on SerDes interface

Technology Cover
Post Date: 2021-06-28, Murata

With the launch of the LQW21FT_0H series, Murata will continue to support the continuous engineering progress of the automotive industry. These are said to be the smallest inductors in the world with broadband impedance and are suitable for automotive PoC circuits based on the SerDes interface. This series complies with the AEC-Q200 standard and has both broadband impedance and high current performance. With its state-of-the-art technology in ceramic materials and coil construction, the company can provide these components in a space-saving size that other manufacturers cannot match. They are contained in a compact 0805 inch housing size, measuring 2mm x 1.2mm x 1.6mm.

This series of inductors is very suitable for PoC use cases. In addition to increasing the broadband impedance level, they also show excellent saturation characteristics. The inductance value can be specified from 0.47µH to 2µH, and the rated current is 1A and 0.45A respectively. The higher operating temperatures that these inductors can support make them ideal for automotive implementations (up to 125C).

"In order to accelerate the transition to safe and autonomous driving, the number of built-in cameras in vehicle models is increasing," said Uwe Mirschberger, Murata Europe's EMI-Filter and Inductor Product Manager. “Therefore, the popularity of PoC in in-vehicle applications is steadily increasing, and the weight of the cable is significantly reduced by transmitting imaging data and power on a coaxial cable. Keeping power and data signals separate from each other is of course crucial to the realization of PoC. The wide frequency characteristics of LQW21FT_0H help to reduce the number of inductors required for this purpose. The LQW21FT_0H series can truly change the PoC deployment, thereby greatly reducing the number of inductors required. Therefore, engineers will be able to save space and reduce the total DC Resistors to simplify their design."

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