Spectrum Analyzer Reference Oscillator PCB from China
Precision printed circuit assembly with oven-controlled crystal oscillator (OCXO) for oscilloscope timebase, ensuring <1ps jitter. Classified under HTS 9030.90.25.00 for its principal use in subheading 9030.10 oscilloscopes' timing circuits.
Duty Rate — China → United States
37.5%
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
• Phase noise and aging specs must match oscilloscope datasheet requirements
• Include thermal compensation circuit diagrams proving scope-specific design
• Avoid 8543 classification by documenting timebase trigger synchronization functions