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SITCSection 7
U.S. imports of mounted piezoelectric crystals (SITC 77681) totaled $17.0M in April 2026, traded with 42 countries.
Importers of Mounted Piezoelectric Crystals paid $2.5M in duties in April 2026 — an effective duty rate of 15% on $16.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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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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Monthly import values over time