Litz Copper Wire for High-Frequency Transformers from Germany
Multi-strand Litz copper wire with individual enamel insulation to reduce skin effect in high-frequency applications. Under HTS 8544.49.30 as specialized insulated copper conductor ≤1,000V. Used in switch-mode power supplies and RF inductors.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Describe Litz construction (number of strands, individual enamel coating) in detail
• Provide frequency range documentation justifying Litz wire design
• Avoid classification as 'fabricated wire' if insulation is primary feature