U.S. imports of High-Power Transistors (Non-Photosensitive, 1 Watt or More) (HS 854129) totaled $107.0M in August 2026, imported from 47 countries.
Importers of High-Power Transistors (Non-Photosensitive, 1 Watt or More) paid $3.1M in duties in August 2026, an average duty rate of 2.91% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataPower transistors rated at 1 watt or above are segmented across multiple frequency bands — below 30 MHz, 30 MHz to 30,000 MHz, and above 30,000 MHz — reflecting their use in power amplifiers, motor drives, RF base stations, and radar systems. Japan and Austria are the leading US suppliers, a pairing that underscores the heading's concentration in precision power and RF semiconductor manufacturing rather than commodity consumer electronics. The seven 10-digit lines under this heading make frequency documentation from manufacturer datasheets essential for accurate entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
7.3K import shipments a month
Classification should be based on the transistor's primary rated or designed operating frequency range as stated in the manufacturer's datasheet. If a device is rated for a broad range spanning multiple classification boundaries, CBP guidance and binding ruling requests can provide certainty. Consulting a licensed customs broker before entry is advisable for multi-band RF power devices.
Line 8541290040 covers unfinished transistor chips at the die or wafer stage for devices rated at or above 1 watt, regardless of frequency. All other lines under 854129 cover completed, packaged transistors differentiated by frequency band. The stage of manufacture — whether the product has been diced, packaged, and tested — determines which line applies.
Subheading 5 of 12 in heading 8541
Subheading 854129 · $107.0M of $1.3B
Trade Directory
List your company under HS 854129 — High-Power Transistors (Non-Photosensitive, 1 Watt or More), so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8541290055 | Transistors Exc Photosensitive, Gt 1w, Freq Lt 30mhz | $69.5M | 2.57% | 6.57% | $1.8M |
| 8541290040 | Transistor Chips Other Than Photosensitive Gt= 1 W | $21.7M | 0.78% | 1.69% | $169K |
| 8541290065 | Trnsstrs Exc Phtosnstv, Gt 1w, Gt 30mhz Lt 30000mhz | $10.0M | 3.05% | 6.30% | $305K |
| 8541290085 | Transistrs Exc Photosnstv, Gt 1w, Freq Gt 30000mhz | $7.0M | 12.63% | 26.67% | $888K |
| 8541290075 | Transistors Exc Photosensitive, Gt 1w, Freq Gt 30mhz | — | -- | -- | -- |
| 8541290095 | Transistors Exc Photosensitive, Gt 1w, Freq Lt 30mhz | — | -- | -- | -- |
Transistors Exc Photosensitive, Gt 1w, Freq Lt 30mhz
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8541290040 | Transistor Chips Other Than Photosensitive Gt= 1 W | $62.3M |
| 8541290080 | Transistors Other Than Photosensitive Gt=1 W | $62.1M |
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
$107.0MYoY · free account
Exports
$124.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.2B of High-Power Transistors (Non-Photosensitive, 1 Watt or More) and exported $1.5B.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Japan and Malaysia together supply 40% of it.
customs district
destination
entry
rate provision · imports
59.7% enters free of duty; duty collected equals 2.91% of imports for consumption.