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1N4733A 5.1V Zener Diode

The 1N4733A is a 5.1V axial-lead silicon Zener diode designed for voltage regulation in electronic circuits. It falls under HTS 8541.10.0050 as a Zener diode, which is a specific type of non-photosensitive, non-light-emitting diode that maintains a stable voltage reference through the Zener effect.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+50.0%50%
🇲🇽MexicoFree—Free
🇨🇦CanadaFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Alternative Classifications

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

8541.10.00Same rate: 50%

If not specifically Zener type

General non-Zener diodes fall under the residual 'Other' subheading within the same diode category.

8542.31.00Same rate: 50%

If imported as part of a processor or controller IC

Integrated circuits with embedded Zener functions are classified under electronic integrated circuits.

8548.00.00.00Lower: 37.5% vs 50%

If sold as assembled electrical regulator modules

Assemblies incorporating Zener diodes for voltage regulation move to electrical parts of machines.

Not sure which classification is right?

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

Import Tips & Compliance

• Verify diode specifications match Zener characteristics per HTS notes to avoid reclassification as general diodes

• Include detailed datasheets and component markings in documentation for CBP review