1N4148 Switching Signal Diode from China
The 1N4148 is a fast-switching silicon diode for signal processing and protection circuits in electronics. Classified under HTS 8541.10.0080 as it is a non-photosensitive diode used in high-frequency switching applications. Excludes light-emitting or photovoltaic functions per chapter notes.
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
• Provide frequency response and switching speed data to confirm non-photosensitive status
• Ensure packaging labels distinguish from LEDs to avoid misclassification
• Batch test for counterfeit detection, as common with signal diodes; include certificates of authenticity