Audio Amplifier Power Stage PCA from Mexico
High-current printed circuit assembly for Class D switching audio amplifiers containing power MOSFETs, gate drivers, and LC output filters. Provides efficient DC-to-audio frequency power conversion for professional sound systems. Classified under HTS 8504.90.75.00 as static converter parts.
Duty Rate — Mexico → 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
• EMI suppression specifications critical for audio equipment certification
• Document THD+N performance metrics
• Classify based on switching power conversion, not analog amplification