Toroidal Transformer Core Laminations from Japan
Stamped and insulated steel laminations designed specifically for assembly into toroidal transformer cores used in power supplies. These parts fall under HTS 8504.90.96.46 as other parts of transformers, distinct from complete cores or windings. They enable efficient magnetic flux in high-performance transformers.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Verify material composition (e.g
• grain-oriented silicon steel) matches transformer specifications to avoid reclassification as raw material under Chapter 72
• Include detailed engineering drawings showing transformer-specific design features in entry documentation