Ferrite Toroid for SMPS Flyback Transformer from China
Toroidal ferrite cores for flyback transformers in small AC-DC switch-mode power supplies (SMPS) under 50W. Specifically classified in HTS 8504.90.96.30 as other ferrite parts for static converters. High saturation flux density for compact designs.
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 gap specifications (gapped vs ungapped cores) which affect electrical performance classification
• For high-temperature grades (>100°C), include thermal rating certification
• Avoid valuation issues by separating core cost from design/tooling charges