Chapter 85 covers electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles. This chapter is one of the most technology-intensive chapters in the HS classification, covering a wide range of commodities from household appliances to precision electronic components. As a basic electronic component, capacitors hold an important position in classification under this chapter, because capacitors are used in almost all electronic circuits, come in a wide variety of types, and their classification must strictly follow the dielectric material and operating principle. Heading 8532 specifically covers electrical capacitors, including fixed capacitors, variable capacitors, and adjustable capacitors. Under this heading, they are further subdivided according to dielectric material and operating principle, such as paper dielectric, plastic dielectric, ceramic dielectric, electrolytic dielectric, etc. Fixed capacitors with paper or plastic dielectric (subheading 8532.23) specifically refer to fixed capacitors using paper or plastic film as the dielectric. Such capacitors are widely used in filtering, coupling, bypass, energy storage and other circuits, and have the characteristics of good stability, high insulation resistance, and excellent frequency characteristics. The first 2 digits 85: indicate Chapter 85, namely electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles. Digits 3-4, 32: indicate heading 8532, namely electrical capacitors, including fixed capacitors, variable capacitors, and adjustable capacitors. Digits 5-6, 23: indicate subheading 8532.23, namely fixed capacitors with paper or plastic dielectric. Among them, the 5th digit 2 indicates a branch under fixed capacitors, and the 6th digit 3 further limits the dielectric to paper or plastic. The overall code 8532.23 precisely points to fixed capacitors with paper or plastic as the dielectric, distinguishing them from fixed capacitors with other dielectrics (such as ceramic, electrolytic, mica, etc.). This commodity is classified under 8532.23 because its core characteristics are a fixed capacitor and a paper or plastic dielectric material. If the dielectric is ceramic, it should be classified under 8532.24; if it is electrolytic dielectric, it is classified under 8532.21 or 8532.22; if it is mica dielectric, it is classified under 8532.25. In addition, variable capacitors are classified under 8532.30, and adjustable capacitors under 8532.90. Therefore, accurately identifying the dielectric material and whether the capacitor is variable is the key to classification.

Product Name: The standard name of the declared commodity, which should accurately reflect the type of capacitor and the dielectric material, such as "plastic dielectric fixed capacitor." Brand: The manufacturer or brand name, used to identify the source and quality of the product, such as "TDK," "Murata," etc. Model: The specific model or specification code of the product, used to uniquely identify the capacitor, such as "CBB21-630V-104." Dielectric Material: Clearly state the dielectric material of the capacitor, such as "polypropylene film," "polyester film," "paper," etc. Rated Voltage: The maximum DC or AC voltage the capacitor can withstand, usually in volts (V), such as "630V." Capacitance: The nominal capacitance of the capacitor, usually in microfarads (μF), nanofarads (nF), or picofarads (pF), such as "0.1μF." Application: The main application scenario of the capacitor, such as "for filtering," "for coupling," "for motor starting," etc. Package Form: The shape and packaging method of the capacitor, such as "radial lead," "axial lead," "surface mount," etc. Product Name: Plastic dielectric fixed capacitor; Brand: TDK; Model: B32922C3104K000; Dielectric Material: Polypropylene film; Rated Voltage: 630V DC; Capacitance: 0.1μF; Application: For power supply filtering; Package Form: Radial lead. Mistakenly classifying plastic dielectric capacitors as ceramic dielectric (8532.24), resulting in differences in tax rates and regulatory conditions. Ignoring the variability of the capacitor and mistakenly classifying variable capacitors under a fixed capacitor subheading. Incomplete declaration elements, such as missing dielectric material or rated voltage, affecting customs review. Confusing paper dielectric and plastic dielectric; although both belong to 8532.23, some countries may have further subdivision requirements. Failing to note whether the capacitor is a finished product or a part; if it is a part, it may need to be classified according to the complete machine.

The core criteria for classification are the type of capacitor (fixed, variable, adjustable) and the dielectric material. First, according to the text of HS heading 8532, capacitors are divided into fixed capacitors, variable capacitors, and adjustable capacitors. Fixed capacitors are further subdivided by dielectric material: paper or plastic dielectric (8532.23), ceramic dielectric (8532.24), mica dielectric (8532.25), electrolytic dielectric (8532.21 or 8532.22). Therefore, determining that the capacitor is fixed and the dielectric is paper or plastic is the key to classification under 8532.23. In addition, attention should be paid to whether the capacitor is combined with other components into a module; if combined, it may be classified according to the module. 8532.24 Fixed capacitors with ceramic dielectric: Ceramic dielectric capacitors use ceramic as the dielectric and have high stability and high-temperature resistance. They differ from paper/plastic dielectrics in material and performance, and the dielectric material must be strictly distinguished during classification. 8532.25 Fixed capacitors with mica dielectric: Mica dielectric capacitors use mica as the dielectric and have high precision and low loss. They are often used in high-frequency circuits and differ significantly from paper/plastic dielectrics in material and application. 8532.21 Fixed tantalum electrolytic capacitors: Tantalum electrolytic capacitors use tantalum metal as the anode, belong to electrolytic capacitors, and are polarized. They are completely different from non-polar paper/plastic capacitors in principle and structure. 8532.22 Fixed aluminum electrolytic capacitors: Aluminum electrolytic capacitors use aluminum foil as the anode and electrolyte as the cathode. They are also polarized and usually have larger capacitance, differing from paper/plastic capacitors in dielectric and polarity. 8532.30 Variable or adjustable capacitors: The capacitance of variable capacitors and adjustable capacitors is adjustable, while the capacitance of fixed capacitors is not adjustable. This is the fundamental difference in classification. Confirm that the capacitor is fixed and its capacitance is not adjustable. Confirm that the dielectric is paper or plastic film. Check whether the model and specifications are consistent with the declaration. Check whether it is combined with other components into a module. Confirm whether it is a part of another heading in Chapter 85.

How can one determine whether a capacitor is paper dielectric or plastic dielectric? Paper dielectric capacitors usually use cable paper or capacitor paper as the dielectric, are mostly cylindrical in appearance, and are often used in AC circuits; plastic dielectric capacitors use films such as polypropylene and polyester as the dielectric, have diverse appearances, and offer more stable performance. They can be identified through product specifications or model numbers, such as the CBB series for polypropylene film and the CL series for polyester film. What is the difference in classification between plastic dielectric capacitors and ceramic dielectric capacitors? Plastic dielectric capacitors are classified under 8532.23, and ceramic dielectric capacitors under 8532.24. The main difference lies in the dielectric material: plastic film vs. ceramic. During classification, the dielectric material must be clarified according to the product specification and cannot be judged by appearance alone. If the capacitor is surface-mount, will the classification be different? Surface mount (SMD) is only a package form and does not affect classification by dielectric material. As long as the dielectric is paper or plastic, it is still classified under 8532.23. However, note that surface-mount capacitors are mostly ceramic or electrolytic dielectric, and plastic dielectric surface-mount capacitors are relatively rare. How should capacitor sets or assemblies be classified? If capacitors are combined with other components into a module with an independent function, they should be classified according to the function of the module, not under 8532. If it is merely a packaged set of multiple capacitors, it is still classified as individual capacitors. It is recommended to refer to General Interpretative Rule 3(b) regarding composite goods. What are the consequences of writing the capacitance unit incorrectly during declaration? An incorrect capacitance unit may cause customs to misunderstand the product specifications, affecting classification or valuation. For example, writing 0.1μF as 0.1nF creates a 1000-fold difference in capacitance and may raise doubts. Be sure to fill it in accurately according to the specification and indicate the unit. How can the import tax rate for capacitors under 8532.23 be checked? The import tax rate must be determined according to the country of origin, trade agreements, and the latest customs tariff. It can be obtained through the official website of the General Administration of Customs of China, the International Trade Single Window, or professional tariff query tools. Note that tax rates change, and it is recommended to rely on the latest tariff at the time of declaration. Is there still a market for paper dielectric capacitors? In which fields are they mainly used? Because paper dielectric capacitors are bulky and less stable than plastic film, they have gradually been replaced by plastic dielectrics. However, they are still used in certain high-voltage, high-frequency, or special occasions, such as power systems and maintenance of old equipment. Plastic dielectric capacitors are widely used in consumer electronics, industrial control, automotive electronics, and other fields. If a capacitor is used in automobiles, are additional certification or declaration requirements required? Automotive capacitors need to comply with reliability standards such as AEC-Q200, but the HS classification remains unchanged. Relevant certification information must be provided during declaration for customs verification. If CCC certification or environmental requirements are involved, they must be handled according to regulations.