HSChapter 85
U.S. imports of parts for diodes, transistors & similar semiconductor devices (HS 854190) totaled $98.2M in April 2026, traded with 41 countries.
Importers of Parts for Diodes, Transistors & Similar Semiconductor Devices paid $6.2M in duties in April 2026 — an effective duty rate of 22% on $28.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts for Diodes, Transistors & Similar Semiconductor Devices imports of $98.2M in April 2026 ran 28% above the year-to-date monthly average of $76.9M.
Last updated: April 2026 dataParts destined for discrete semiconductor devices, photosensitive semiconductors, and mounted piezoelectric crystals enter under this heading, which also captures a commercially significant subset: frames for photovoltaic cells assembled in modules or panels (8541900010), a line that has drawn heightened customs scrutiny given solar supply-chain enforcement actions. Vietnam and Malaysia lead US imports under this heading, reflecting the regional shift of semiconductor back-end and component manufacturing into Southeast Asia. The remaining lines (8541900000 and 8541900080) cover a broad range of lead frames, housings, and subassemblies used in discrete device production. Importers of solar-related parts should be aware of Withhold Release Orders and forced-labor due-diligence requirements that may apply to certain supply chains.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Frames specifically for photovoltaic cells assembled in modules or panels are explicitly provided for under 8541900010 within this heading, not under the finished module headings. However, if a frame is imported as part of a complete module, the entire article would typically classify as the finished module. The distinction matters because separate parts entries may carry different duty exposure, including any applicable trade-remedy orders.
CBP has issued Withhold Release Orders targeting goods produced with forced labor from specific facilities in various countries. Importers sourcing semiconductor parts from Vietnam and Malaysia — the leading suppliers under this heading — should conduct supply-chain due diligence, maintain documentation of labor practices at each tier of production, and monitor the CBP Forced Labor Enforcement list. The Uyghur Forced Labor Prevention Act may also apply if any upstream materials originate from the Xinjiang region of China.
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 |
|---|---|---|---|---|
| 8541900010 | FRAMES FOR PHTOVLTAIC CELLS ASSM IN MODULES/PANELS | $76.4M | 19.42% | $4.8M |
| 8541900080 | DIODE, TRANSISTOR & SMLR SEMICONDUCTR DEVICE PARTS | $21.8M | 39.41% | $1.4M |
| 8541900000 | DIODE, TRANSISTOR & SMLR SEMICONDUCTR DEVICE PARTS | $0 | -- | -- |
FRAMES FOR PHTOVLTAIC CELLS ASSM IN MODULES/PANELS
DIODE, TRANSISTOR & SMLR SEMICONDUCTR DEVICE PARTS
DIODE, TRANSISTOR & SMLR SEMICONDUCTR DEVICE PARTS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8541900000 | DIODE, TRANSISTOR & SMLR SEMICONDUCTR DEVICE PARTS | $45.3M |
DIODE, TRANSISTOR & SMLR SEMICONDUCTR DEVICE PARTS
254.9M 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
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| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $28.5M | $7.2M | -$21.3M |
| California | $9.8M | $10.6M | +$880K |
| Ohio | $18.5M | -- | -$18.5M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $26.8M | -- | -$26.8M |
| NEWARK, NJ | $15.4M | $5.5M | -$9.9M |
| LOS ANGELES, CA | $13.6M | -- | -$13.6M |