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On a power supply line, ferrite beads, which are passive electrical components, can block high frequency impulses. They are typically located around a power/ground line pair that is entering into a specific device, like the laptop’s power cord.
These beads function in accordance with Faraday’s Law: in the presence of a high frequency signal, the magnetic core around a conductor induces a back EMF, thus attenuating the ferrite frequency response.
As magnetic materials, ferrites can be used to create a ferrite clamp around the power supply/ground line to act as an inductive impedance source for signals travelling over the line.
The Global automotive power supply chip ferrite beads market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
For usage in automotive power supply applications, Murata Manufacturing CoLtd. has unveiled the BLM18SP SH1 line of the world’s smallest chip ferrite beads.
The new series realises higher impedance acquisition efficiency together with decreased resistance, which results in a large current.
This is made possible by a novel structural design that makes use of internal electrode manufacturing technology. Additionally, opposed to normal goods, which are typically packed in 0805(2012) inch (mm) size (2.0mm 1.25mm), this series is commercially available in 0603(1608) inch (mm) size (1.6mm 0.8mm) packages.
As a result, manufacturers have more design freedom when creating circuits for automotive power supplies, which enables them to support more advanced autonomous driving with a lower in-vehicle component footprint.
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