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SITCSection 7
U.S. imports of variable or adjustable (pre-set) capacitors (SITC 77868) totaled $2.9M in April 2026, traded with 21 countries.
Importers of Variable or Adjustable (Pre-Set) Capacitors paid $458K in duties in April 2026 — an effective duty rate of 16% on $2.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Variable or Adjustable (Pre-Set) Capacitors imports of $2.9M in April 2026 ran 24% above the year-to-date monthly average of $2.3M.
Last updated: April 2026 dataVariable and pre-set (trimmer) capacitors allow real-time or factory-set tuning of resonant circuits, making them essential in RF communications equipment, oscillators, and precision instrumentation. Unlike fixed capacitors, their mechanical or electronic adjustment mechanism is the defining classification feature, and importers should ensure product documentation clearly identifies the adjustment method to avoid misclassification. Section 301 exposure applies to units of Chinese origin, and the relatively specialized demand base means supply is concentrated among a small number of precision component manufacturers.
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Both fall under this SITC heading, but the distinction matters for end-use documentation: variable capacitors are designed for repeated user adjustment (e.g., tuning dials), while pre-set trimmers are adjusted once during manufacturing or calibration and then fixed. Customs documentation and technical datasheets should specify which type is being imported to support the declared HTS subheading.
Variable and adjustable capacitors manufactured in China are subject to Section 301 tariffs. Importers sourcing from other origins should verify country-of-origin documentation carefully, as the adjustment mechanism and key subcomponents may be produced in multiple countries.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $31K | $1.0M | +$1.0M |
| CHINA | $708K | $312K | -$396K |
| SWITZERLAND | $877K | $59K | -$817K |
| TAIWAN | $45K | $802K | +$757K |
| JAPAN | $501K | $70K | -$431K |
Monthly import values over time