The February Issue of PCIM Power Electronic Systems Magazine has an
interesting feature article on EMI Suppression. "Selecting EMI Suppression
Ferrites Requires Attention to Complex Permeability" by Carole U. Parker,
Fair-Rite Products.
The article compares 73, 43, and 61 material, as well as the new 44 and 31
materials. Graphs of complex permeability and impedance vs. frequency are
presented.
Ron Dohmen N0AT
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