A ferrite bead is a passive electric component, which is commonly used for suppressing high frequency noise in electronic circuits.

A ferrite bead is a passive electric component, which is commonly used for suppressing high frequency noise in electronic circuits.

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(a) Simplified circuit model
(b) Tyco Electronics BMB2A1000LN2 measured ZRX plot
source: Analog Devices article Ferrite Beads Demystified

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