The differential mode impedance is marked with the dotted line whereas the common mode impedance is the solid line. Note that in a bifilar type winding, at 1MHz there is no impedance so any noise in that frequency range will not be attenuated.
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The differential mode impedance is marked with the dotted line whereas the common mode impedance is the solid line. Note that in a bifilar type winding, at 1MHz there is no impedance so any noise in that frequency range will not be attenuated.
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