Silicon NPN Power Transistor Wafer from China
Thin silicon wafers containing thousands of unmounted NPN bipolar junction transistor dice, designed for dissipation rates under 1W, used in consumer electronics like smartphones and amplifiers. Classified under HTS 8541.21.00.40 as unmounted chips, dice, and wafers of transistors other than photosensitive types with dissipation less than 1W.
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
• Provide detailed specifications confirming dissipation rate <1W and unmounted status to avoid reclassification as mounted devices
• Use ESD-protected packaging and include material safety data sheets for hazardous substances compliance
• Verify country of origin documentation as many wafers originate from sensitive supply chains