MOSFET Driver Wafer from China

Silicon wafer containing unmounted MOSFET driver transistor chips for low-power switching applications in power management ICs, with dissipation rates below 1W. Falls under HTS 8541.21.00.40 as unmounted transistor wafers other than photosensitive.

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
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

Submit wafer maps and die specifications to confirm unmounted status and prevent misclassification

Ensure compliance with Wassenaar Arrangement export controls for semiconductor tech

Avoid valuation disputes by providing separate invoices for wafer vs. bumped die