The application note explains how to characterize common-mode choke impedance and parasitic effects with the Bode 500 and B-TCA fixture to create accurate behavioral models for EMI simulation and filter design.

Accurate frequency-dependent measurements reveal higher-order resonances and other parasitic effects that simple impedance tests may miss.
This data supports more reliable filter optimization, improved EMI suppression, and reduced risk of regulatory or system-stability issues.

To follow the step-by-step application note, please download the document:

Application Note: Modeling Multi-Resonace Common-Mode Chokes V1.0

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Modeling Common-Mode Chokes