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HSChapter 85
U.S. imports of semiconductor diodes (excluding photosensitive and led) (HS 854110) totaled $56.7M in July 2026, traded with 48 countries.
Importers of Semiconductor Diodes (Excluding Photosensitive and LED) paid $4.5M in duties in July 2026 — an effective duty rate of 49% on $9.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Semiconductor Diodes (Excluding Photosensitive and LED) imports of $56.7M in July 2026 ran 18% above the year-to-date monthly average of $47.9M.
Last updated: July 2026 dataZener diodes, microwave diodes, and general-purpose semiconductor diodes — split by current-carrying capacity at the 0.5-ampere threshold — are foundational components in power management, signal processing, and RF circuits across consumer, industrial, and automotive electronics. China and Taiwan together dominate US import flows under this heading, with Malaysia and Japan rounding out the primary supply base. Section 301 tariffs apply to imports from China, making origin documentation and first-sale valuation practices particularly important for cost management.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
4.6K shipments/mo
The US schedule classifies general semiconductor diodes (other than photosensitive) into those rated at or below 0.5 A (8541100070) and those above 0.5 A (8541100080). Zener diodes (8541100050) and microwave diodes (8541100060) have their own dedicated lines, as do chips and wafers for non-photosensitive diodes (8541100040). The correct line depends on the device's rated current and functional type as documented in the manufacturer's datasheet.
Manufacturer datasheets specifying device type (Zener, microwave, rectifier, etc.) and rated forward current are the primary classification evidence. For mixed shipments, a packing list that itemizes part numbers by type and current rating allows each line item to be assigned to the appropriate 10-digit HTS code, reducing the risk of a blanket NESOI classification that could be challenged at entry.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8541100080 | Semiconductor Diodes not Photosensitve Gt 0.5 A | $42.8M | 8.52% | 17.49% | $3.6M |
| 8541100040 | Chips & Wafers for Diodes Except Photosensitive | $4.2M | 0.70% | 1.97% | $29K |
| 8541100050 | Zener Diodes | $4.1M | 10.68% | 21.59% | $434K |
| 8541100070 | Semiconductor Diodes not Photosensitve Lt= 0.5 A | $3.7M | 8.87% | 18.40% | $324K |
| 8541100060 | Microwave Diodes | $2.0M | 5.21% | 11.99% | $103K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
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ImportsExports
Imports
$56.7MYoY · Pro
Exports
$50.9MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
China and Taiwan together supply 46% of it.
customs district
destination
entry
rate provision · imports
57.6% enters free of duty; the effective duty rate is 8.01%.