HS Code for Magnetron tube

Magnetron tubes are classified under HS code 8540.71 because they are a specific type of thermionic, cold cathode, or photo-cathode valve or tube. Specifically, they fall under the category of microwave tubes. These devices function as high-powered vacuum tubes that generate microwaves through the interaction of a stream of electrons with a magnetic field while moving past a series of open metal cavities. This classification is determined by the General Rules of Interpretation (GRI), specifically GRI 1, which directs classification to the heading that most specifically describes the product. Since 8540 covers thermionic tubes and 8540.71 specifically names magnetrons, this is the correct designation. The classification remains consistent regardless of whether the tube is intended for industrial radar systems or consumer microwave ovens, provided it is imported as a standalone component. The technical nature of the vacuum tube, involving an internal cathode and anode structure within a vacuum envelope, is the primary factor in its placement within Chapter 85.

Products Included

• Continuous wave (CW) magnetrons
• Pulsed magnetrons for radar systems
• Microwave oven magnetron tubes
• High-frequency magnetron oscillators
• Magnetrons for industrial heating equipment

Common Misclassification

Magnetron tubes are frequently misclassified under HS code 8516.90, which covers parts for domestic electro-thermic appliances like microwave ovens. While a magnetron is a component of an oven, Note 2 to Section XVI specifies that parts which are goods included in any of the headings of Chapter 84 or 85 are in all cases to be classified in their respective headings. Therefore, as a thermionic tube, it must stay in 8540. Another common error is using 8540.79, which is for other microwave tubes like klystrons or traveling wave tubes, but magnetrons have their own specific 6-digit subheading.

FAQ

What is the HS code for magnetron tube?

The HS code for a magnetron tube is 8540.71, which specifically covers microwave magnetrons excluding grid-controlled tubes.

Does the power output affect the HS code for magnetrons?

No, the HS code 8540.71 applies to magnetrons regardless of their power wattage, provided they meet the technical definition of a magnetron tube.