PTC Thermistor Heating Resistor from Canada
Positive temperature coefficient ceramic disc that self-regulates heat output, used in hair straighteners, coffee makers, and automotive seat heaters. Under HTS 8516.80.8000 as other domestic heating resistors; PTCs increase resistance with temperature unlike fixed resistors of 8545. Self-limits to 240°C preventing overheating.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document Curie temperature (switching point) and resistance-temperature curve; test for dielectric strength as PTCs operate at high voltage; declare surface temperature limit for safety compliance