DARLINGTON Phototransistor Dual Element from Canada
High current gain darlington connected phototransistor pair providing 10,000+ gain for low light level detection in smoke detectors and medical instruments. Falls under HTS 8541.49.70 as photosensitive transistor configuration.
Duty Rate — Canada → United States
0%
Rate breakdown
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
• Specify darlington configuration in documentation; still classifies as phototransistor not two separate devices
• Include smoke detector UL certification if applicable for end-use verification
• Avoid GRI 3(a) set classification; functions as single photosensitive transistor unit