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SITCSection 7
U.S. exports of semiconductor devices (other) (SITC 77639) totaled $479.7M in July 2026.
Importers of Semiconductor Devices (Other) paid $275K in duties in July 2026 — an effective duty rate of 33% on $826K in dutiable value, based on actual customs collections rather than the published tariff schedule. Semiconductor Devices (Other) imports of $153.2M in July 2026 ran 30% above the year-to-date monthly average of $118.0M.
Last updated: July 2026 dataSemiconductor devices not elsewhere specified under SITC 77639 serve as the residual catch-all for discrete and compound semiconductor components that do not fit the diode, transistor, thyristor, or photosensitive device headings — including Hall-effect sensors, varistors of semiconductor type, Gunn diodes, tunnel diodes, and certain MEMS devices. Correct placement in this heading requires a process of elimination: the importer must demonstrate that the device's operating principle or construction excludes it from each of the more specific semiconductor headings. Section 301 tariff exposure for Chinese-origin components applies broadly across semiconductor headings, making origin documentation equally important here.
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937 shipments/mo
Devices frequently placed here include Hall-effect sensors (used in position and current sensing), Gunn diodes and IMPATT diodes (used in microwave oscillators), tunnel diodes, varactor diodes used as voltage-controlled capacitors, and certain MEMS transducers with semiconductor sensing elements. The common thread is that each operates on a semiconductor principle but does not fit the definitional criteria of the diode, transistor, thyristor, or photosensitive device headings.
The strongest approach is a technical brief that walks through each more-specific semiconductor heading and explains — with reference to the device's datasheet — why the article does not meet that heading's criteria. For example, demonstrating that a Hall-effect sensor is not a diode (no rectifying junction), not a transistor (no amplifying function in the conventional sense), and not a photosensitive device (no light-dependent operation) supports the NES placement. Retaining the manufacturer's technical datasheet, application notes, and any prior CBP rulings on similar devices strengthens the classification file.
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Exports · July 2026
destination
Taiwan and Israel together take 81% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$153.2MYoY · Pro
Exports
$479.7MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.