Photocathode for Streak Camera from China
S-20 extended red photocathode tube for picosecond streak cameras, providing 10ps time resolution in laser-plasma interaction studies. Features bi-alkali cathode with 30% QE at 800nm. Classified under HTS 8540.89.00.60 as high-speed light-sensing tube.
Duty Rate — China → United States
41.2%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Time resolution specs (<50ns excludes from 8525.81 high-speed classification
• UHV compatibility certification for research vacuum systems
• Laser safety classification documentation if paired with femtosecond sources