FR-1 Paper Phenolic PCB for Audio Amplifiers from Mexico
FR-1 grade printed circuit board made entirely from paper impregnated with phenolic resin, used in compact audio amplifier boards for home stereo systems. Specifically qualifies under HTS 8534.00.00.50 for its paper-based construction versus common fiberglass alternatives. Provides economical signal processing substrate.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Request dielectric constant test results proving paper base (typically 4.0-5.0) vs
• FR4 (4.5+ with glass)
• Use HSEN for precise subheading 8534.00.00.50 declaration to avoid generic 8534.00 default duties