Resettable PTC Polymeric Fuse from China
A polymeric positive temperature coefficient (PTC) device that acts as a resettable fuse, increasing resistance under overcurrent to limit flow, then resetting when cooled. Used in battery protection and power supplies under 1,000V. Classified as a fuse under HTS 8536.10.00 for its overcurrent protection function.
Duty Rate — China → United States
40.2%
Rate breakdown
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]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Document the device's resettable nature but emphasize its fuse-like overcurrent protection to avoid reclassification
• Include trip current and hold current specifications in import documentation
• Ensure packaging clearly distinguishes from non-resettable fuses to prevent confusion during inspection