FR-1 Paper Phenolic PCB for Audio Amplifiers
FR-1 grade printed circuit board made entirely from paper impregnated with phenolic resin, used in compact audio amplifier boards for home stereo systems. Specifically qualifies under HTS 8534.00.00.50 for its paper-based construction versus common fiberglass alternatives. Provides economical signal processing substrate.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mounted in complete microphone or loudspeaker assemblies
Audio PCBs in finished speaker systems classify under complete audio apparatus.
If programmable control boards with logic functions
Boards controlling sequences classify as programmable controllers.
If basic plastic sheets without conductive circuitry
Unetched impregnated paper sheets before circuit printing are non-conductive plastic products.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Request dielectric constant test results proving paper base (typically 4.0-5.0) vs
• FR4 (4.5+ with glass)
• Use HSEN for precise subheading 8534.00.00.50 declaration to avoid generic 8534.00 default duties
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