200mm Silicon Rectifier Diode Wafer from China
200mm diameter silicon epitaxial wafers for high-voltage rectifier diodes used in automotive alternators and industrial power supplies. Features p-n junction arrays optimized for forward voltage drop and surge current. HTS 8541.10.0040 covers these unmounted diode wafer forms.
Duty Rate — China → United States
50%
Rate breakdown
9903.91.0550%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (f) of U.S. note 31 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Specify epi-layer thickness and breakdown voltage ratings in commercial invoice for proper valuation
• Include test wafer data showing diode parameters to validate classification over generic silicon
• Automotive-qualified wafers may qualify for preferential tariff treatment under USMCA; verify origin certificates