Components for PFC and Harmonic Filtering Tech Notes Product Top Page Search by Part No. Search by Characteristics Catalog Tech Notes more Product Top Page Search by Part No. Search by Characteristics Catalog Tech Notes Product Top Page Search by Part No. Search by Characteristics Catalog Tech Notes Products & Technologies TDK offers PhaseCap Energy Plus PFC capacitors with significantly improved performance Rugged design for a long service life PQvar boosts energy efficiency and ensures load balancing Applications & Cases TDK improves power quality in the petrochemical industry