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HSChapter 85
U.S. imports of high-power transistors (non-photosensitive, 1 watt or more) (HS 854129) totaled $111.3M in April 2026, traded with 43 countries.
Importers of High-Power Transistors (Non-Photosensitive, 1 Watt or More) paid $3.3M in duties in April 2026 — an effective duty rate of 25% on $13.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. High-Power Transistors (Non-Photosensitive, 1 Watt or More) imports of $111.3M in April 2026 ran 15% above the year-to-date monthly average of $97.0M.
Last updated: April 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.
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.
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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 |
|---|---|---|---|---|
| 8541290055 | TRANSISTORS EXC PHOTOSENSITIVE,GT 1W,FREQ LT 30MHZ | $65.1M | 29.16% | $2.1M |
| 8541290040 | TRANSISTOR CHIPS OTHER THAN PHOTOSENSITIVE GT= 1 W | $24.8M | 48.95% | $261K |
| 8541290065 | TRNSSTRS EXC PHTOSNSTV,GT 1W, GT 30MHZ LT 30000MHZ | $12.9M | 13.82% | $629K |
| 8541290085 | TRANSISTRS EXC PHOTOSNSTV,GT 1W,FREQ GT 30000MHZ | $8.5M | 39.46% | $359K |
| 8541290075 | TRANSISTORS EXC PHOTOSENSITIVE,GT 1W,FREQ GT 30MHZ | $0 | -- | -- |
| 8541290095 | TRANSISTORS EXC PHOTOSENSITIVE,GT 1W,FREQ LT 30MHZ | $0 | -- | -- |
TRANSISTORS EXC PHOTOSENSITIVE,GT 1W,FREQ LT 30MHZ
TRANSISTOR CHIPS OTHER THAN PHOTOSENSITIVE GT= 1 W
TRNSSTRS EXC PHTOSNSTV,GT 1W, GT 30MHZ LT 30000MHZ
TRANSISTRS EXC PHOTOSNSTV,GT 1W,FREQ GT 30000MHZ
TRANSISTORS EXC PHOTOSENSITIVE,GT 1W,FREQ GT 30MHZ
TRANSISTORS EXC PHOTOSENSITIVE,GT 1W,FREQ LT 30MHZ
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8541290040 | TRANSISTOR CHIPS OTHER THAN PHOTOSENSITIVE GT= 1 W | $64.8M |
| 8541290080 | TRANSISTORS OTHER THAN PHOTOSENSITIVE GT=1 W | $59.2M |
TRANSISTOR CHIPS OTHER THAN PHOTOSENSITIVE GT= 1 W
9.0M no
TRANSISTORS OTHER THAN PHOTOSENSITIVE GT=1 W
71.1M 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 | $34.5M | $26.6M | -$7.8M |
| New York | $997K | $26.9M | +$25.9M |
| Oregon | $783K | $19.9M | +$19.1M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOS ANGELES INTERNATIONAL AIRPORT, CA | $35.4M | $24.8M | -$10.5M |
| CLEVELAND, OH | $6.4M | $37.7M | +$31.3M |
| CHICAGO, IL | $18.1M | -- | -$18.1M |