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Microwave Magnetron Electron Gun

This electron gun is designed for magnetron microwave tubes used in radar and cooking appliances, emitting electrons into the RF interaction space. It falls under tariff item 8540.99.10 as an electron gun for microwave tubes of subheadings 8540.71, 8540.72, or 8540.79.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8540.99.90Same rate: Free

If the electron gun is for a magnetron tube not classified under 8540.71-8540.79

Other parts of thermionic valves and tubes not elsewhere specified.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Ensure the magnetron tube is classified under subheadings 8540.71-8540.79 for the electron gun to qualify

• Provide technical documentation showing the electron gun's compatibility with magnetron tubes

• If the magnetron is for a different use, confirm the classification

Related Products under Tariff item 8540.99.10

Broadcast Transmitter Klystron RF Structure

This is a radio frequency (RF) interaction structure designed for high-power klystron microwave tubes used in broadcast transmitters. It is a critical component that enables the amplification of RF signals to multi-megawatt levels, and it falls under tariff item 8540.99.10 as an RF interaction structure for microwave tubes of subheadings 8540.71, 8540.72, or 8540.79.

CRT Television Electron Gun Assembly

This electron gun assembly is a key component of cathode-ray tube (CRT) televisions, generating and accelerating electron beams to strike the phosphor screen for image display. It falls under tariff item 8540.99.10 as an electron gun, which is a part of thermionic valves and tubes.

Electron Gun Subassembly for TV CRT

This modular electron gun subassembly for television cathode-ray tubes includes cathodes, grids, and focusing electrodes, essential for beam formation and deflection. It falls under tariff item 8540.99.10 as an electron gun, a part of thermionic valves and tubes.

High-Voltage Television Camera Tube Electron Gun

This is an electron gun designed for television camera tubes (vidicons), used to accelerate electrons for image sensing in broadcast and industrial cameras. It falls under tariff item 8540.99.10 as an electron gun, a part of thermionic valves and tubes.

Industrial X-Ray Tube Electron Gun

This electron gun is a component for industrial X-ray tubes, generating electron beams for non-destructive testing applications. It falls under tariff item 8540.99.10 as an electron gun, a part of thermionic valves and tubes, provided the X-ray tube is classified under heading 85.40.

Klystron Tube Electron Gun

This precision electron gun is designed for klystron microwave tubes used in particle accelerators and broadcasting transmitters. It falls under tariff item 8540.99.10 as an electron gun, a part of thermionic valves and tubes, specifically for microwave tubes of subheadings 8540.71, 8540.72, or 8540.79.