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SITCSection 7
U.S. imports of aluminum electrolytic fixed capacitors (SITC 77863) totaled $24.7M in April 2026, traded with 37 countries.
Importers of Aluminum Electrolytic Fixed Capacitors paid $2.7M in duties in April 2026 — an effective duty rate of 12% on $22.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Aluminum Electrolytic Fixed Capacitors imports of $24.7M in April 2026 ran 42% below the year-to-date monthly average of $42.5M.
Last updated: April 2026 dataAluminum electrolytic capacitors use an aluminum oxide dielectric formed on an etched aluminum foil anode, yielding high capacitance values at relatively low cost — a combination that makes them the workhorse of power supply filtering, motor starting, and audio amplification circuits worldwide. Their electrolyte composition and can construction are performance-critical: temperature rating (e.g., 85°C vs. 105°C) and ripple-current capacity are the primary specification axes that importers and buyers use to differentiate commodity from premium grades. Chinese manufacturers dominate global production, and imports from China are subject to Section 301 tariffs, which has accelerated sourcing shifts toward producers in Taiwan, Japan, and South Korea.
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Temperature rating (typically 85°C or 105°C) directly affects the capacitor's expected service life and suitability for end applications. While it does not change the SITC or HTS classification, buyers and OEMs treat it as a primary procurement specification, and mismatched ratings can result in early field failures — making accurate documentation on commercial invoices important for quality-control purposes.
The liquid electrolyte in these capacitors can dry out over time, degrading capacitance and increasing equivalent series resistance. Most manufacturers recommend a shelf life of two years from production date under proper storage conditions, and capacitors stored longer may require a reforming procedure before use. Importers holding large inventories should track lot dates and rotate stock accordingly.
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Monthly import values over time