HS Code for Variable resistors

Variable resistors, including rheostats and potentiometers, are classified under HS code 853340. This classification is based on the product's function as an electrical component designed to provide a measurable and adjustable amount of electrical resistance. Heading 8533 covers all electrical resistors (including rheostats and potentiometers), other than heating resistors. Sub-heading 853340 specifically captures variable resistors that are not wirewound. These components are used across a vast array of electronic and electrical applications to control parameters such as volume, light intensity, or motor speed by varying the current or voltage in a circuit. The classification includes various technologies such as carbon film, cermet, and conductive plastic variable resistors, provided they are not designed for heating purposes (which would fall under 8516).

Products Included

• Carbon composition potentiometers
• Cermet variable resistors
• Slide potentiometers (faders)
• Trimmer resistors (trimpots)
• Industrial rheostats (non-wirewound)
• Joystick-controlled variable resistors

Common Misclassification

Variable resistors are often confused with wirewound variable resistors, which are classified under 853331 (for power handling < 20W) or 853339 (for power handling > 20W). It is critical to identify the resistive element material. Additionally, fixed resistors are classified under 853310 or 853321/853329. Some electronic sensors that change resistance based on physical stimuli (like thermistors) may also be confused with 853340 but have specific sub-headings within 8533.

FAQ

What is the HS code for variable resistors?

The HS code for non-wirewound variable resistors, including potentiometers and rheostats, is 853340.

Are volume knobs on radios classified here?

The internal component (the potentiometer) is classified under 853340, though the plastic knob itself, if shipped separately, would be classified under 3926.