DC-DC Buck Converter Controller Board from Japan
Printed circuit board with PWM controller ICs for buck converters, regulating voltage in static DC-DC power supplies for telecommunications equipment. It qualifies for HTS 8504.90.96.50 as a core control submodule of static converters.
Duty Rate — Japan → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Submit circuit diagrams showing PWM circuitry to Customs for part-of-converter verification
• Declare voltage/current ratings accurately to prevent undervaluation penalties
• Pair with bills of materials from manufacturers proving static converter origin