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SITCSection 7
U.S. imports of mounted piezoelectric crystals (SITC 77681) totaled $19.2M in July 2026, traded with 44 countries.
Importers of Mounted Piezoelectric Crystals paid $2.1M in duties in July 2026 — an effective duty rate of 14% on $14.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataMounted piezoelectric crystals — quartz resonators, oscillators, and filters in their assembled, ready-to-use form — provide the frequency-reference and signal-filtering functions that underpin telecommunications infrastructure, GPS receivers, industrial sensors, and precision timing equipment. The 'mounted' distinction is commercially significant: unmounted crystal blanks classify differently and are typically traded as intermediate goods for further processing, whereas mounted units are finished components ready for board-level assembly. Frequency tolerance, temperature stability grade (standard, TCXO, OCXO), and package type are the specification variables that most affect pricing and sourcing decisions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.7K shipments/mo
Basic heading 349 of 642 in section 7
Basic heading 77681 · $19.2M of $175.6B
A mounted piezoelectric crystal is the resonator element in its housing, relying on external circuitry to sustain oscillation. A crystal oscillator module integrates the resonator with active oscillator circuitry and may classify under a different heading depending on its construction. The distinction matters for duty purposes and should be confirmed against the product's technical datasheet.
Frequency accuracy (ppm tolerance), temperature stability class (standard crystal vs. temperature-compensated TCXO vs. oven-controlled OCXO), aging rate, and package footprint are the primary specification drivers. High-stability OCXO units command significant price premiums and are often sourced from a narrower set of qualified suppliers than commodity SMD crystals.
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Imports · July 2026
origin
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$19.2MYoY · Pro
Exports
$20.1MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.