PTC Thermistor Heating Resistor
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If functioning primarily as fixed resistor not heater
Resistors over 20W designed mainly for voltage division fall under heading 8533, not heating.
If assembled into complete hand dryer or hair curler
Complete electrothermic hairdressing apparatus use specific subheadings in 8516.3.
If photosensitive PTC semiconductor material
Light-sensitive semiconductor devices shift to heading 8541.
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Import Tips & Compliance
• 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
Related Products under HTS 8516.80.80.00
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A flat, flexible electric heating resistor made with mica sheets and nichrome wire, designed for band heaters used to maintain temperature in industrial plastic molding barrels. It falls under HTS 8516.80.8000 as an electric heating resistor for domestic or general use, distinct from specialized resistors in heading 8545. Typical resistance values range from 10-100 ohms depending on voltage.
3D Printer Heated Bed Resistor
PCB-mounted serpentine trace resistor heating aluminum bed to 110°C for FDM 3D printing adhesion. HTS 8516.80.8000 as other heating resistor for domestic hobby use; 24V DC, 200W typical.
Tubular Sheathed Heating Element
Sealed metal tube containing a coiled resistance wire in magnesium oxide insulation, used in domestic ovens, grills, and water heaters. Classified under HTS 8516.80.8000 as 'other' electric heating resistors for domestic electrothermic appliances, not fixed resistors of 8545. Common lengths 12-48 inches with 1000-5000W ratings.
Open Coil Nichrome Heater Wire
Exposed nichrome resistance wire coiled for convective heating in toasters, convection ovens, and space heaters for home use. HTS 8516.80.8000 covers these as other electric heating resistors for domestic purposes, excluding semiconductor or carbon film types in 8545. Operates at 1000-1500°C surface temperature.
Silicone Rubber Flexible Heater
Thin etched-foil resistance circuit laminated between silicone rubber sheets for drum heaters, laboratory hot plates, and medical warming pads. HTS 8516.80.8000 for other domestic electrothermic heating resistors; flexible design conforms to curved surfaces up to 200°C.
Kapton Polyimide Film Heater
Ultra-thin polyimide film with copper-etched heating traces for aerospace de-icing, 3D printer beds, and electronics warming. Classified HTS 8516.80.8000 as other electric heating resistors; withstands -269°C to +400°C with rapid thermal response.