DARLINGTON Phototransistor QSD2030F from China
High-gain Darlington-connected phototransistor pair in surface-mount package for low-light detection in consumer electronics. Provides current gain >10,000 for ultra-sensitive applications. Classified as photosensitive transistor under 8541.49.70.80.
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%Universal product exemption (U.S. note 52(b))
Import Tips
• Specify Darlington configuration in technical docs to avoid classification as monolithic IC (8542)
• Include gain vs. illumination curves demonstrating photosensitive transistor characteristics
• Ensure RoHS declaration; common rejection cause for electronics components