Thales TH629 Klystron Amplifier from China
A CW pulsed klystron tube operating at X-band frequencies for radar transmitters and scientific accelerators. Falls under HTS 8540.79.2000 as 'other' microwave tubes (klystrons) excluding grid-controlled variants. Provides high power output for military and research applications requiring precise frequency control.
Duty Rate — China → United States
38.7%
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
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]
Import Tips
• Export license may be required for high-power klystrons (ITAR/EAR); provide frequency/power specs matching subheading
• Ensure no grid-control features per exclusion note
• Common pitfall: misclassification as complete radar under 8526