Synthetic Diamond Heat Sinks from Japan
CVD diamond plates engineered for thermal management in electronics and lasers. Unmounted worked industrial diamonds under 7102.29.00. Thermal conductivity exceeds copper by 5x.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include thermal conductivity specs and CVD certification; declare electronic industrial use
• Distinguish from jewelry by opacity/color
• Provide mounting substrate details if attached