Gun Diode (Gunn Diode) for Microwave

Gunn diodes generate microwave frequencies through negative resistance effect, used in radar, police speed guns, and motion detectors. As bulk semiconductor transfer electron devices functioning as diodes, they classify under HTS 8541.10.00.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
πŸ‡¨πŸ‡³ChinaFree+50.0%50%
πŸ‡²πŸ‡½MexicoFreeβ€”Free
πŸ‡¨πŸ‡¦CanadaFreeβ€”Free
πŸ‡©πŸ‡ͺGermanyFreeβ€”Free
πŸ‡―πŸ‡΅JapanFreeβ€”Free

Alternative Classifications

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

8540.81.00Lower: 39.2% vs 50%

If mounted in microwave hybrid integrated circuits

Hybrid microwave ICs containing Gunn elements.

8526.91.00Lower: 35% vs 50%

If part of complete radar apparatus

Integral to finished radio navigation equipment.

9013.10.50Lower: 22.8% vs 50%

If calibrated for liquid level gauging

Microwave diodes in measuring instruments.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

β€’ Require FCC/ITAR certifications for microwave devices; declare oscillation frequency precisely

β€’ High-value items; use transaction value method with purchase invoices

β€’ Classify as diode despite oscillator function per semiconductor definitions

Related Products under HTS 8541.10.00

1N4007 Rectifier Diode

The 1N4007 is a standard silicon rectifier diode designed for general-purpose rectification in power supplies and chargers. It allows current to flow in one direction only, blocking reverse voltage up to 1000V, classifying it under HTS 8541.10.00 as a non-photosensitive, non-LED diode. This component is essential for converting AC to DC in electronic circuits.

1N4148 Switching Diode

The 1N4148 is a high-speed silicon switching diode used in signal processing, protection circuits, and high-frequency applications. It features fast switching times under 4ns, fitting HTS 8541.10.00 as a non-photosensitive diode. Commonly found in computers, telecommunications, and consumer electronics.

Zener Diode 1N4733A

The 1N4733A is a 5.1V Zener diode used for voltage regulation and reference in power supplies and stabilizers. It maintains constant voltage across its terminals under reverse bias, qualifying under HTS 8541.10.00 for non-light-emitting diodes. Critical for protecting circuits from voltage spikes.

Schottky Barrier Diode BAT54

The BAT54 is a Schottky diode with low forward voltage drop (0.3V) ideal for high-efficiency rectification in switch-mode power supplies and RF detectors. Its metal-semiconductor junction enables fast switching, placing it under HTS 8541.10.00 as a non-photosensitive diode.

Germanium Point Contact Diode OA90

The OA90 is a vintage germanium diode used in radio frequency detection and vintage electronics restoration. It offers low forward voltage for crystal radio detectors, classified under HTS 8541.10.00 for non-photosensitive diodes regardless of semiconductor material.

Bridge Rectifier Diode GBU4J

The GBU4J is a 4-pin silicon bridge rectifier diode rated for 600V/4A, used in AC-DC power adapters and battery chargers. It contains four diodes in one package for full-wave rectification, still classified under HTS 8541.10.00 as diodes.