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8540.89.00.60/Vacuum Photodiode Tube/Canada

Vacuum Photodiode Tube from Canada

S-4 response vacuum photodiode tube with Cs-O-Ag photocathode for UV light detection in spectrophotometers, featuring fast response time (<2ns) and high radiant sensitivity. Operates without electron multiplication for direct photocurrent generation. HTS 8540.89.00.60 covers this as a light-sensing vacuum tube with photocathode.

Duty Rate — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Specify spectral response curve (160-650nm) to distinguish from semiconductor photodiodes

• Base material certificates required if containing controlled substances like cesium compounds

• Avoid packaging with optical mounts that could trigger instrument parts classification

Vacuum Photodiode Tube from Canada — Import Duty Rate | HTS 8540.89.00.60