Multi-Gap Ferrite Core for Resonant Transformers

Precision multi-gap cut ferrite cores for LLC resonant converter transformers, providing controlled inductance and low leakage at 100-250 kHz. Distributed gap design reduces winding losses. Classified under HTS 8504.90.96.10.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8504.90Same rate: 35%

If resonant inductor applications

Distinguish transformer vs inductor role in resonant topologies.

8504.40.95Same rate: 35%

If static converter complete assemblies

Finished power supplies containing these classify as converters.

8543.70Lower: 12.6% vs 35%

If other electrical machines

Broad catch-all for specialized power magnetic components.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Provide gap dimension tolerances and effective permeability calculations

Document Q-factor specifications for resonant applications

Include frequency tuning range validation data

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