</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
8540.89.00/Microwave Backward Wave Oscillator Tube/Canada

Microwave Backward Wave Oscillator Tube from Canada

Backward wave oscillator tubes generate tunable microwave signals for test equipment and radar. HTS 8540.89.00 includes these velocity-modulated tubes producing electromagnetic waves through backward wave interaction.

Duty Rate — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Calculate with your customs valueVerify classification with AI

Import Tips

• Frequency tuning range and output power specifications critical

• Magnetic field strength requirements for operation documented

• Avoid classification under signal generators (9030.82)

Microwave Backward Wave Oscillator Tube from Canada — Import Duty Rate | HTS 8540.89.00