High-Frequency Wound Amorphous Core for Switch-Mode Transformers from Mexico
A compact wound core made from amorphous metal alloy, optimized for high-frequency switch-mode power supply transformers in computing devices. Falls under HTS 8504.90.96.42 as it's pre-wound specifically for transformer integration, reducing energy losses at frequencies above 20kHz.
Duty Rate — Mexico → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) of U.S. note 16 to this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Import Tips
• Provide frequency response test data proving high-frequency design, distinguishing from audio or low-frequency cores
• Label with amorphous alloy composition percentage, as alloy content affects duty calculations and origin rules
• Ship in anti-corrosion packaging; surface damage often leads to rejection as unfit for transformer incorporation