MLCC Model

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Joined Feb 18, 2020
A simple MLCC capacitor model would generally include capacitance, equivalent series resistance ESR, and equivalent series inductance ELS terms. Looking at the Ceramic Capacitor Models models provided by AVX in the SpiMLCC tool both impedance & ESR data is provided as plots and as spice models. Shouldn't a model of the impedance include the ESR? If so why would they are these provided separately? How would you construct an accurate model in LTSpice? I am thinking of either using the Impedance model only or putting it in series with the ESR model.

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