Small AEC-Q200-compliant inductors save space for PoC circuits

Claimed to be the world’s smallest inductors with broadband impedance for in-vehicle power-over-coax (PoC) circuit of SerDes-based interfacing, the LQW21FT_0H series complies with AEC-Q200.

The design of Murata’s inductor and the combination of ceramic material and coil structure technology result in a compact 0805 inch case size, measuring 2.0 x 2.0 x 1.6mm.

Murata says that the LQW21FT_0H series inductors are well suited to PoC use cases due to the elevated broadband impedance levels and “superior” saturation properties. Inductance values from 0.47 to 2 microH can be specified, with respective current ratings of 1.0 and 0.45A. The inductors can support operating temperatures up to 125 degrees C, making them suitable for automotive use.

“To accelerate the transition towards safe, autonomous driving, the number of built-in cameras featured in vehicle models continues to increase,” said Uwe Mirschberger, product manager EMI – filters, inductors, at Murata Europe. “The popularity of PoC for in-vehicle applications is, as a result, steadily rising and enables significant reductions in cabling weight by transmitting imaging data and electrical power over one coaxial cable” he explained. Keeping the power and data signals is vital to PoC implementations, and the LQW21FT_0H’s broad frequency characteristics help to reduce the number of inductors needed “considerably”, says the company.

As a result, engineers will be able to streamline designs, save space and reduce total DC resistance.

Murata manufactures electronic components, modules, and devices. The company’s product range includes ceramic capacitors, resistors/thermistors, inductors/chokes, timing devices, buzzers, sensors and EMI suppression filters.

The company is known as a global ceramic capacitor manufacturer, a leader in Bluetooth and Wi-Fi modules, board-mount DC/DC converters as well as standard and custom AC/DC power supplies.

Established in 1944, Murata is headquartered in Japan and has European offices in Finland, France, Germany, Hungary, Italy, the Netherlands, Spain, Switzerland and the UK.

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