RM8 Ferrite Core Set for Flyback Transformers

RM8 ferrite core pairs (two halves) made from high-grade MnZn material for flyback transformers in consumer electronics like TVs and monitors. Designed for 25-200 kHz operation with optimal flux density. HTS 8504.90.96.10 classification for transformer-specific ferrites.

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.

8504.90.75.00Same rate: 35%

If constructed from electrical steel laminations

Laminated steel cores for flyback transformers use separate subheadings from solid ferrite cores.

8473.30.51.00Higher: 50% vs 35%

If for use in computer power supply assemblies

Parts of automatic data processing machines may take precedence over general transformer parts.

8504.90.96Same rate: 35%

If specified for inductors instead of transformers

Ferrites have parallel subheadings differentiated strictly by stated end-use application.

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

Import as matched sets with gap specifications documented for proper transformer identification

Avoid mixing with inductor cores in same shipment to prevent commingling classification issues

Certify Curie temperature ratings (>200°C typical) in technical documentation

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