Microchannel Plate Photomultiplier from China
MCP-PMT with 40mm active area featuring 25μm pore diameter microchannels for high-speed photon counting in PET scanners. Provides <25ps timing resolution for time-of-flight applications. HTS 8540.89.00.60 applies to this advanced light-sensing tube with photocathode and MCP amplification.
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
• Declare MCP pore density (10K channels/cm²) and photocathode QE specifications for classification
• 21 CFR 1020 compliance for X-ray emission if medical imaging component
• Vacuum integrity test certificates required for tube sealing verification