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HSChapter 85
U.S. imports of photovoltaic semiconductor devices (nesoi) (HS 854149) totaled $81.1M in July 2026, traded with 48 countries.
Importers of Photovoltaic Semiconductor Devices (NESOI) paid $990K in duties in July 2026 — an effective duty rate of 40% on $2.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataPhotosensitive diodes, photosensitive transistors, optocouplers (optical coupled isolators, 8541498000), and other photovoltaic semiconductor devices not elsewhere specified serve critical roles in signal isolation, photodetection, and optoelectronic sensing across industrial automation, medical devices, and telecommunications. Italy and Japan lead US imports under this heading, with Taiwan, Canada, and Mexico also significant — a geographically diverse supply base that reflects the breadth of specialty optoelectronic manufacturing. Optocouplers in particular are widely used in safety-critical isolation circuits, making component-level traceability an important procurement consideration.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
3.8K shipments/mo
Optical coupled isolators have a dedicated 10-digit line (8541498000) within 854149, separate from photosensitive diodes (8541491050), photosensitive transistors (8541497080), and their respective chip/wafer lines. An optocoupler combines an LED emitter and a photosensitive detector in a single package to provide electrical isolation; its classification in 8541498000 is based on this combined optoelectronic isolation function rather than on either constituent device alone.
Photovoltaic cells (854142, 854143) are designed to convert light into electrical power for energy generation. Photosensitive devices under 854149 — such as photodiodes, phototransistors, and optocouplers — are designed to detect light or transmit signals optically, not to generate usable power. The intended function (power generation vs. signal detection or isolation) is the primary classification distinction, and it should be supported by the manufacturer's datasheet and product specifications.
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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 |
|---|---|---|---|---|---|
| 8541491050 | Photosensitive Diodes, NESOI | $20.9M | 0.96% | 2.54% | $200K |
| 8541498000 | Optical Coupled Isolators | $19.8M | 2.10% | 5.17% | $417K |
| 8541491010 | Chips & Wafers for Photosensitive Diodes | $19.6M | 1.28% | 2.57% | $251K |
| 8541499500 | Photosensitive Semiconductor Devices, NESOI | $17.6M | 0.49% | 1.96% | $87K |
| 8541497040 | Chips and Wafers for Photosensitive Transistors | $1.8M | 0.06% | 0.13% | $1K |
| 8541497080 | Photosensitive Transisters, NESOI | $1.3M | 2.64% | 5.28% | $36K |
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.
ImportsExports
Imports
$81.1MYoY · Pro
Exports
$83.6MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Taiwan and Japan together supply 49% of it.
customs district
destination
entry
rate provision · imports
64.4% enters free of duty; the effective duty rate is 1.22%.