Dielectric Kraft Paper for Electrolytic Condensers
Thin uncoated kraft tissue paper used as separator in aluminum electrolytic capacitors, with precise thickness control for electrolyte absorption. At 40-150 g/m² from sulfate wood fibers, it provides essential dielectric function. Classified precisely as condenser paper in HTS 4804.39.20.00.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If lightweight coated on both sides with mechanical pulp base
Light-weight coated paper has specific coating weight limits in 4810; uncoated kraft differs.
If kraft paper >150 g/m² not for condensers
Weight threshold separates subheadings; >150 g/m² kraft goes to 4804.19.
If textile-coated for capacitor reinforcement
Textile-impregnated papers classify in Chapter 59; plain kraft stays in 48.
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Import Tips & Compliance
• Supply technical datasheets showing dielectric constant <3.5; generic thin paper may classify under 4802
• Use ISF filing early for electronics components; delays common due to dual-use scrutiny
• Confirm no subsidiary printing; primary electrical use must dominate per chapter notes
Related Products under HTS 4804.39.20.00
Electrical Condenser Tissue Paper
Ultra-thin, high-purity kraft paper designed specifically for use as dielectric insulation in electrical capacitors and condensers. It is uncoated, weighs under 150 g/m², and meets the precise dielectric strength requirements for high-voltage applications. Classified under HTS 4804.39.20.00 as condenser paper, a specialized kraft paperboard not covered by headings 4802 or 4803.
Capacitor Grade Kraft Condenser Paper
High-tensile kraft paper in rolls, optimized for oil-filled electrical condensers with superior insulation properties. Uncoated and ≤150 g/m², it consists of ≥80% sulfate process fibers tailored for dielectric separation in power electronics. Falls under HTS 4804.39.20.00 as other kraft paper specifically for condensers.
High-Voltage Condenser Insulation Paper
Specialty uncoated kraft paper sheets for high-voltage condenser separators, featuring low electrical conductivity and high breakdown voltage. Weighing 120 g/m² or less with sulfate pulp base, it's engineered for transformer and capacitor manufacturing. HTS 4804.39.20.00 designates it as condenser paper within other kraft ≤150 g/m².
Transformer Condenser Separator Paper
Uncoated kraft paperboard in rolls for insulating layers between windings in oil-immersed power transformers and condensers. ≤150 g/m² with high purity sulfate fibers ensures minimal tan delta for electrical performance. HTS 4804.39.20.00 covers this as specialized other kraft condenser paper.
Power Capacitor Insulation Kraft Paper
High-density uncoated kraft paper sheets for metallized film power capacitors, offering robust dielectric withstand under AC stress. Weight-controlled at 150 g/m² max with ≥80% chemical sulfate fibers per kraft definition. Designated HTS 4804.39.20.00 for condenser-specific kraft paperboard.
Synthetic Oil Compatible Condenser Paper
Kraft-based uncoated paper engineered for compatibility with synthetic dielectric oils in modern condensers, ≤150 g/m² in roll form. Provides stable insulation without degradation in PCB-free capacitors. HTS 4804.39.20.00 classifies it as condenser paper within kraft parameters.