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SITCSection 7
U.S. imports of semiconductor devices (other) (SITC 77639) totaled $110.2M in April 2026, traded with 44 countries.
Importers of Semiconductor Devices (Other) paid $355K in duties in April 2026 — an effective duty rate of 18% on $2.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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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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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| Country | Imports | Exports | Balance |
|---|---|---|---|
| TAIWAN | $33.7M | $454.2M | +$420.5M |
| ISRAEL | $33.3M | $29.6M | -$3.6M |
| IRELAND | $27.0M | $21.2M | -$5.8M |
| THAILAND | $85K | $13.1M | +$13.0M |
| PHILIPPINES | $124K | $9.9M | +$9.8M |
Monthly import values over time