The web tool Common Mode Choke Finder allows engineers to easily search and compare hundreds of common mode filter options. Search results are presented in a table sorted by the highest impedance or attenuation, depending on the user’s input.
The tool includes the ability to search across a range of frequencies, showing the minimum common mode impedance/attenuation across the entire range. Another column shows the differential mode attenuation. It lets users analyze up to six filters on single impedance and attenuation graphs, making direct comparisons between products much easier. Search results also include pricing and users can order free evaluation samples of the parts selected. http://www.coilcraft.com/apps/finder/cmffinder.cfm
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