8540.89.00/Photomultiplier Tube (PMT)/Japan

Photomultiplier Tube (PMT) from Japan

Photomultiplier tubes convert weak light signals into electrical pulses through electron multiplication across multiple dynodes. Classified under HTS 8540.89.00 as photocathode tubes designed for photon detection in scientific instruments.

Duty Rate — Japan → United States

13.7%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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Import Tips

• Spectral response curves and quantum efficiency data essential for classification

• Clean room packaging required; contamination voids warranty and functionality

• Distinguish from image intensifier tubes under 8540.71 (TV camera tubes)

Photomultiplier Tube (PMT) from Japan — Import Duty Rate | HTS 8540.89.00