SR521SW Coin Cell Battery from Japan
Ultra-thin SR521SW silver oxide coin cells (5.8mm x 2.1mm) power micro-electronics with <300 cm³ volume. Classified HTS 8506.40.1010 as primary button/coin silver oxide batteries. Ideal for glucose meters and hearing aids.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Maintain temperature logs during shipping (<60°C) to preserve silver oxide electrolyte stability
• Use original manufacturer packaging to preserve anti-corrosion seals required for duty-free small package entries
• Separate declaration for silver content if exceeding de minimis for precious metal duties