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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basic information
- Core material: MA070 (7000μ) - Core shape: New core HHX74 Example SPRF035332: SPEC - 35A 3.3mH DCR = 5mΩ max - Dimensions W (96mm) × D (96mm) × H (57mm)
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Applications/Examples of results
Industrial power supplies, EV charging infrastructure, renewable energy-related equipment, etc.
Detailed information
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Frequency vs. Impedance Characteristics
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Company information
Based on the design know-how, evaluation know-how, process management/quality management know-how cultivated over many years in the electrical industry, we are not bound by existing technologies and offer: ■ Development and sales of various inductors with new concepts ■ Development, manufacturing, and sales of various electronic devices (control devices, IoT devices, sensor devices, power supply units, etc.) By providing our technical know-how, we support our customers' operations (part or all of their processes) and respond to their demands through unparalleled services and systems.
