3-terminal Filters Product Top Page Search by Part No. Search by Characteristics Cross Reference Catalog Tech Notes Technical Support Tools EoL/NRND Info. Solution Guides Noise Countermeasures for DC-DC Converter Input Lines using 3-terminal Filters (Feed-through Filters for Power Lines) Important points regarding mounting 3-terminal feed-through filters Reducing the number of decoupling components and conserving space with 3-terminal feed-through filters Countermeasure Against Radiation Noise in Power Line Using 3-Terminal Feed-Through Filters Countermeasure Against Harmonic Noise in Power Line Using 3-Terminal Feed-Through Filters