DARLINGTON Phototransistor Dual Element
A Darlington-connected phototransistor pair providing 10,000+ gain for low light level detection in smoke detectors and medical instruments. This high-gain photosensitive transistor configuration falls under tariff item 8541.49.00 as 'Other' photosensitive semiconductor devices.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| π¨π³China | Free | β | Free |
| π²π½Mexico | Free | β | Free |
| πΊπΈUnited States | Free | β | Free |
| π©πͺGermany | Free | β | Free |
| π―π΅Japan | Free | β | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the Darlington pair is part of a larger photosensitive assembly
When the phototransistor pair is integrated into a module with additional components, it may be classified under 8541.43.00.
If the phototransistor is presented as a component of a smoke alarm system
Parts of electric sound or visual signalling apparatus may be classified under heading 85.31 if the phototransistor is part of such a system.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item β and can price the duty on it in the same conversation.
Import Tips & Compliance
β’ Document the Darlington configuration and high current gain (10,000+) to justify classification under 8541.49.00
β’ Have technical specifications showing the dual-element structure ready for CBSA review
β’ Verify whether the phototransistor meets Canadian safety standards for smoke detector applications
Related Products under Tariff item 8541.49.00
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Ambient Light Sensor Photodiode
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