RM Ferrite Core for Telecom Power Supplies from Germany
RM (round multi-aperture) ferrite cores for high-efficiency transformers in telecom rectifiers and DC-DC converters. HTS 8504.90.96.30 covers these ferrite parts designed for 100-400 kHz switching frequencies in network equipment. Optimized for thermal stability in continuous operation.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Obtain manufacturer test reports showing Curie temperature and core loss data for classification support
• For high-volume imports, consider bonded warehouse storage to manage duties on slow-moving inventory
• Distinguish between sendust cores (different HTS) via alloy composition certificates