Magnetron Oscillator Tube from China
A magnetron tube is a high-power vacuum tube that generates microwave frequencies using the interaction of a stream of electrons from a heated cathode and a powerful magnetic field. It falls under HTS 8540.89.00 as an other thermionic tube, specifically a cold cathode or vacuum tube used primarily in microwave ovens and radar systems.
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
• Verify tube specifications match thermionic/vacuum tube definitions; provide technical datasheets for customs classification
• Ensure RoHS compliance documentation as these tubes often contain hazardous materials like mercury