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Q.Can common mode filters / chokes be used on the primary side of a power supply? Can common mode filters / chokes be used in AC lines?

EMC Components >  EMC Components >  Common Mode Filters / Chokes

A. Common mode filters (common mode chokes) cannot be used for the primary side of a power supply or for an AC line. Please use a signal line or DC power source line.
Please refer to the Selection Guide published by TDK in order to confirm products based on the usage method.

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