BNC Feedthrough Adapter for 9030.31 Spectrum Analyzers from China
Precision BNC feedthrough adapter designed exclusively for input ports on spectrum analyzers of subheading 9030.31, minimizing signal loss in RF measurements. Classified in 9030.90.89.21 as a dedicated connector accessory for these ionizing radiation-excluding electrical instruments. Used in calibration and high-frequency testing setups.
Duty Rate — China → United States
35%
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
• Specify impedance (50/75 ohm) and frequency range in invoices linking to 9030.31 analyzers
• Certify materials for non-corrosive RF use; avoid general connector declarations
• Watch for undervaluation when importing in bulk without model-specific refs