Toroidal Ferrite Core for Audio Transformers
This toroidal-shaped nickel-zinc ferrite core is engineered for audio output transformers in high-fidelity amplifiers, offering low distortion and wide bandwidth up to 50 kHz. Its closed magnetic path minimizes electromagnetic interference. Falls under HTS 8504.90.96.10 as a dedicated transformer ferrite component.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for inductor applications in filter circuits
Same ferrite material but different end-use shifts classification from transformer-specific to general parts.
If part of complete microphone transformer assemblies
Microphone parts have dedicated subheadings when including ferrite cores.
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Import Tips & Compliance
• Provide evidence of audio frequency specifications to distinguish from general-purpose ferrites
• Ensure cores are not pre-wound with copper wire, as wound transformers classify differently
• Declare exact dimensions and weight accurately, as ferrites may trigger undervaluation scrutiny
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