Switch Mode Power Supply Transformer Core

Ferrite core assembly for high-frequency transformers in switch-mode power supplies (SMPS), a static converter type. Falls under HTS 8504.90.96.50 as it is integral to the conversion process in SMPS units.

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 cores for power transformers (not static converters)

Transformer parts are separated from static converter parts in 8504.90.

8504.90Same rate: 35%

If iron cores without SMPS specification

General electrical cores classify differently within the parts heading.

8548.00.00.00Same rate: 35%

If waste or scrap electrical cores

Used or defective cores fall under electrical waste provisions.

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

Include frequency response data (kHz range) to distinguish from low-frequency transformer cores

Use HTS advisory rulings for borderline core designs

Bundle with winding specs if applicable to prove SMPS specificity

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