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HSChapter 85
U.S. imports of semiconductor diodes (excluding photosensitive and led) (HS 854110) totaled $50.8M in April 2026, traded with 45 countries.
Importers of Semiconductor Diodes (Excluding Photosensitive and LED) paid $6.8M in duties in April 2026 — an effective duty rate of 43% on $15.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Semiconductor Diodes (Excluding Photosensitive and LED) imports of $50.8M in April 2026 ran 10% above the year-to-date monthly average of $46.1M.
Last updated: April 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.
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.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8541100080 | SEMICONDUCTOR DIODES NOT PHOTOSENSITVE GT 0.5 A | $37.0M | 42.77% | $4.5M |
| 8541100050 | ZENER DIODES | $5.6M | 47.78% | $1.4M |
| 8541100040 | CHIPS & WAFERS FOR DIODES EXCEPT PHOTOSENSITIVE | $3.7M | 49.35% | $87K |
| 8541100070 | SEMICONDUCTOR DIODES NOT PHOTOSENSITVE LT= 0.5 A | $3.5M | 43.10% | $715K |
| 8541100060 | MICROWAVE DIODES | $1.1M | 26.24% | $141K |
SEMICONDUCTOR DIODES NOT PHOTOSENSITVE GT 0.5 A
ZENER DIODES
CHIPS & WAFERS FOR DIODES EXCEPT PHOTOSENSITIVE
SEMICONDUCTOR DIODES NOT PHOTOSENSITVE LT= 0.5 A
MICROWAVE DIODES
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8541100080 | SEMICONDUCTOR DIODES NOT PHOTOSENSITVE GT 0.5 A | $27.5M |
| 8541100040 | CHIPS & WAFERS FOR DIODES EXCEPT PHOTOSENSITIVE | $12.2M |
| 8541100070 | SEMICONDUCTOR DIODES NOT PHOTOSENSITVE LT= 0.5 A | $3.3M |
| 8541100050 | ZENER DIODES | $3.3M |
| 8541100060 | MICROWAVE DIODES | $1.8M |
SEMICONDUCTOR DIODES NOT PHOTOSENSITVE GT 0.5 A
255.8M no
CHIPS & WAFERS FOR DIODES EXCEPT PHOTOSENSITIVE
15.3M no
SEMICONDUCTOR DIODES NOT PHOTOSENSITVE LT= 0.5 A
31.5M no
ZENER DIODES
50.7M no
MICROWAVE DIODES
280.0K no
MACH FOR RECP/CONVR/TRANS/REGN OF VOICE/IMAGE/DATA
HS 851762
SOLID-STATE NON-VOL SEMICONDUCTOR STORAGE DEVICES
HS 852351
SMARTPHONES
HS 851713
PROCESSORS AND CONTROLLERS, ELECTRONIC INTEG CIRCT
HS 854231
CONTROLS ETC W ELECT APPR F ELECT CONT NOV 1000 V
HS 853710
STATIC CONVERTERS; ADP POWER SUPPLIES
HS 850440
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $13.1M | $9.5M | -$3.6M |
| Texas | $4.0M | $7.5M | +$3.5M |
| Massachusetts | $2.6M | $6.5M | +$3.9M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| ANCHORAGE, AK | $10.4M | $5.4M | -$4.9M |
| CLEVELAND, OH | $4.1M | $10.1M | +$5.9M |
| LOS ANGELES INTERNATIONAL AIRPORT, CA | $8.9M | $4.0M | -$4.9M |