Microphone Preamp Printed Circuit Board from Mexico
This printed circuit assembly contains the amplification circuitry specifically designed for professional condenser microphones under subheading 8518.10.40. It processes low-level audio signals from the microphone capsule with high gain and low noise. Classified under 8518.90.60.00 as a PCA of those microphones.
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
• Verify the PCA is exclusively for microphones of 8518.10.40 via schematics and manufacturer specs to avoid misclassification
• Include bills of materials (BOM) and circuit diagrams in documentation to prove compatibility with specified subheadings
• Watch for overclassification as complete amplifiers (8518.40); ensure no standalone enclosure or power supply