PTC Thermistor Heating Resistor
This is a positive temperature coefficient (PTC) thermistor ceramic disc that self-regulates heat output, used in hair straighteners, coffee makers, and automotive seat heaters. Its resistance increases with temperature, providing inherent overheat protection. It is classified under 8516.80.00 as an electric heating resistor for domestic purposes.
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 |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the PTC element is used primarily as a current-limiting device
Other variable resistors of heading 85.33 may apply if the primary function is not heating.
If the PTC element is a semiconductor diode
Semiconductor devices of heading 85.41 are excluded from 8516.80.00 if they are not heating resistors.
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 PTC element is classified as a heating resistor, not as a semiconductor device of heading 85.41
• Provide technical data showing its heating function and resistance-temperature characteristics
• Verify if the product is for automotive use, which may require additional safety certifications
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