Rectifier Diode Heat Sink Assembly from Canada
A heat sink assembly integrated with high-power rectifier diodes, designed to dissipate heat in AC-DC static converters for welding equipment. Classified under HTS 8504.90.96.50 as it is an essential thermal management part of static rectifiers.
Duty Rate — Canada → 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
• Provide heat dissipation ratings and diode specs in documentation to confirm static converter application
• Ensure RoHS compliance labeling for electronics parts entering the US market
• Avoid common pitfall of classifying as standalone heat sinks (8419.90); emphasize rectifier integration