Toroidal Ferrite Core for Audio Transformers from China
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.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• 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