Thyristor SCR BT151
The BT151 is a silicon-controlled rectifier (SCR) thyristor used for high-power switching in lighting dimmers and motor controls. As a four-layer semiconductor device with gate-controlled conduction, it is classified as an 'other' semiconductor device under tariff item 8541.59.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the thyristor is a diac or triac
Thyristors, diacs and triacs have a dedicated subheading in heading 85.41.
If the device is a mechanical or electromechanical switch
Switches for electrical circuits are classified under heading 85.36.
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
• Classify the BT151 as a thyristor under 8541.59.00, not as a switch or relay
• Keep datasheets to demonstrate the semiconductor structure and gate-controlled operation
• Confirm if the goods are eligible for reduced duties under a free trade agreement
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