HS Code for Power Transistors
The HS Code for power transistors is 854129. The MFN duty rate for importing to the US is Free.
| HS Code (6-digit) | 854129 |
|---|---|
| US HTS (10-digit) | 8541290000 |
| EU CN Code (8-digit) | 85412900 |
| US Duty Rate (MFN) | Free |
| EU Duty Rate (MFN) | 0% |
| Chapter | 85 |
| Heading | 8541 |
| Last Updated | 2026-05 |
Description
Transistors, other than photosensitive, with a dissipation rate of 1W or more
HS Code 854129 covers high-power transistors dissipating 1W or more, with a US MFN duty rate of Free.
Frequently Asked Questions
For HTS 854129 power transistors, what specific customs documentation or product attributes commonly trigger inspections or delays?
Shipments of these power transistors frequently face customs holds if the wattage (dissipation rate) declared on the commercial invoice does not precisely match the product's technical datasheet, as the 1W or more threshold is critical for classification. Additionally, missing or vague manufacturer part numbers and country-of-origin markings on the devices themselves can raise red flags and prompt physical inspection.
What additional costs beyond the tariff rate should I anticipate when importing power transistors (HTS 854129) with a dissipation rate of 1W or more?
Beyond the Free Most-Favored-Nation (MFN) duty rate, you must account for the Merchandise Processing Fee (MPF), typically 0.3464% with a $31.67 minimum and $634.62 maximum. Since these are discrete semiconductor devices, they are also subject to a Free Harbor Maintenance Fee (HMF) if arriving by vessel, and imports from China are currently subject to a Free Section 301 additional duty.
Compliance Notes for Power Transistors
Power transistors classified under 8541.29 must comply with RoHS (Restriction of Hazardous Substances) directives, particularly concerning lead content in solder and terminations. Importers should be prepared to provide documentation proving compliance with FCC Part 15 for electromagnetic interference (EMI) if the transistors are intended for use in radio frequency applications. Additionally, shipments containing these semiconductors may be subject to anti-dumping/countervailing duties (AD/CVD) investigations; always verify current orders with CBP. For transistors containing gallium arsenide (GaAs) or other compound semiconductors, ensure proper safety data sheets (SDS) are available for hazardous material handling.
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