Transformer Heat Sink Assembly from Mexico
Aluminum extruded heat sinks with transformer-specific mounting patterns and thermal interface pads for high-power SMPS transformers. Classified as HTS 8504.90.96.46 other transformer parts due to dedicated thermal management function. Critical for preventing transformer overheating in compact electronics.
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
• Thermal performance data (watts per °C) and finite element analysis reports validate transformer-specific design
• Anodizing specifications and thermal interface material details required for complete description