U.S. exports of Semiconductor Devices (Other) (SITC 77639) totaled $500.0M in August 2026.
Importers of Semiconductor Devices (Other) paid $329K in duties in August 2026, an average duty rate of 0.17% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Semiconductor Devices (Other) imports of $188.0M in August 2026 ran 48% above the year-to-date monthly average of $126.7M.
Last updated: August 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.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
890 import shipments a month
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.
Basic heading 27 of 642 in section 7
Basic heading 77639 · $500.0M of $76.2B
Trade Directory
List your company and tag the 6-digit products you trade, so the companies trading them can find you. Be the first supplier listed.
Exports · August 2026
destination
Taiwan and Israel together take 82% 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
$188.0MYoY · free account
Exports
$500.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.5B of Semiconductor Devices (Other).
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.