Analysis
HTS 8541.51.00 covers semiconductor-based transducers under heading 8541 (semiconductor devices (for example, diodes, transistors, semiconductor-based…).
Goods from countries without normal trade relations pay the column 2 rate of 35% instead of nothing, so origin decides between free entry and a 35% duty.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 58% of the 624 tariff lines in chapter 85. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
Census statistics map these goods to NAICS 334413 (Semiconductor and Related Device Manufacturing), an industry of 822 US establishments employing 116,831 people. That is the industry code a US manufacturer of the same product would normally use.
All 14 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 8541.10.00 | Diodes, other than photosensitive or light-emitting diodes (LED) | Free |
| 8541.21.00 | With a dissipation rate of less than 1 W | Free |
| 8541.29.00 | Transistors, other than photosensitive transistors: other | Free |
| 8541.30.00 | Thyristors, diacs and triacs, other than photosensitive devices | Free |
| 8541.41.00 | Light-emitting diodes (LED) | Free |
| 8541.42.00 | Photovoltaic cells not assembled in modules or made up into panels | Free |
| 8541.43.00 | Photovoltaic cells assembled in modules or made up into panels | Free |
| 8541.49.10 | Other: other diodes | Free |
| 8541.49.70 | Other: transistors | Free |
| 8541.49.80 | Optical coupled isolators | Free |
| 8541.49.95 | Other: other | Free |
| 8541.59.00 | Other semiconductor devices: other | Free |
| 8541.60.00 | Mounted piezoelectric crystals | Free |
| 8541.90.00 | Semiconductor devices (for example, diodes, transistors, semiconductor-based transducers); photosensitive semiconductor devices, including photovoltaic cells whether or not assembled in modules or made up into panels; light-emitting diodes (LED), whether or not assembled with other light-emitting diodes (LED); mounted piezo-electric crystals; parts thereof: parts | Free |