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Are the high voltage capacitors and ferrite beads shown on the typical connection diagram necessary?

April 26, 2017beads capacitors connection diagram Ferrite high necessary voltage

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Are the high voltage capacitors and ferrite beads shown on the typical connection diagram necessary?

1 Answer

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10 Posted

These components are recommended for EMI filtering but are not required. If your design does not include some form of EMI filtering, a redesign will be required if excessive EMI levels are produced. The components used in the EMI filter affect only very high frequency signals and have no affect on normal communications or FCC Part 68 compliance.