Three-Phase Input Filter for High Power and High Current - SPRF Series

What cannot be handled by specialized transformer coil manufacturers is possible at CKS!

The SPRF series is a next-generation three-phase input filter choke coil developed by CKS, which achieves miniaturization and high quality and performance compared to conventional products by adopting a hexagonal core structure. This unique shape optimizes the magnetic flux distribution and maximizes the utilization efficiency of the core material, allowing for high inductance and excellent thermal dissipation even in limited spaces. Additionally, significant improvements have been confirmed across the entire frequency versus impedance characteristics, particularly demonstrating excellent noise suppression performance in the 150kHz to 10MHz range, which is problematic for noise terminal voltage. Furthermore, by optimizing the structure as a three-phase input filter, it shows high attenuation effects for both common mode and normal mode noise components, contributing to the overall improvement of power quality in the system and enhancing compliance with international EMC standards. The SPRF series is an innovative solution that provides new value in both filter performance and mountability for next-generation power designs that are advancing in high power and high density.

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