HTS heading 8541 · Chapter 85
HTS 8541: Semiconductor devices
HTS heading 8541 covers 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. It has 15 tariff lines with a duty rate; the general (MFN) rates are Free (15 lines).
Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.
Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.
Tariff lines and duty rates
| HTS code | Description | General | Special | Column 2 | Estimate |
|---|---|---|---|---|---|
| 8541.10.00 | Diodes, other than photosensitive or light-emitting diodes (LED) | Free | 35% | ||
| 8541.10.00.40 | Unmounted chips, dice and wafers[No.] | Estimate → | |||
| Other: | |||||
| 8541.10.00.50 | Zener[No.] | Estimate → | |||
| 8541.10.00.60 | Microwave[No.] | Estimate → | |||
| Other: | |||||
| 8541.10.00.70 | With a maximum current of 0.5 A or less[No.] | Estimate → | |||
| 8541.10.00.80 | Other[No.] | Estimate → | |||
| Transistors, other than photosensitive transistors: | |||||
| 8541.21.00 | With a dissipation rate of less than 1 W | Free | 35% | ||
| 8541.21.00.40 | Unmounted chips, dice and wafers[No.] | Estimate → | |||
| Other: | |||||
| 8541.21.00.75 | With an operating frequency not less than 100 MHz[No.] | Estimate → | |||
| 8541.21.00.95 | Other[No.] | Estimate → | |||
| 8541.29.00 | Other | Free | 35% | ||
| 8541.29.00.40 | Unmounted chips, dice and wafers[No.] | Estimate → | |||
| Other: | |||||
| 8541.29.00.55 | With an operating frequency less than 30 MHz[No.] | Estimate → | |||
| 8541.29.00.65 | With an operating frequency 30 MHz or greater but less than 30,000 MHz[No.] | Estimate → | |||
| 8541.29.00.85 | With an operating frequency 30,000 MHz or greater[No.] | Estimate → | |||
| 8541.30.00 | Thyristors, diacs and triacs, other than photosensitive devices | Free | 35% | ||
| 8541.30.00.40 | Unmounted chips, dice and wafers[No.] | Estimate → | |||
| 8541.30.00.80 | Other[No.] | Estimate → | |||
| Photosensitive semiconductor devices, including photovoltaic cells whether or not assembled in modules or made up into panels; light-emitting diodes (LED): | |||||
| 8541.41.00.00 | Light-emitting diodes (LED)[No.] | Free | 20% | Estimate → | |
| 8541.42.00 | Photovoltaic cells not assembled in modules or made up into panels | Free | 35% | ||
| 8541.42.00.10 | Crystalline silicon photovoltaic cells of a kind described in statistical note 12 to this chapter[No., W] | Estimate → | |||
| 8541.42.00.80 | Other[No., W] | Estimate → | |||
| 8541.43.00 | Photovoltaic cells assembled in modules or made up into panels | Free | 35% | ||
| 8541.43.00.10 | Crystalline silicon photovoltaic cells of a kind described in statistical note 12 to this chapter[No., W] | Estimate → | |||
| 8541.43.00.80 | Other[No., W] | Estimate → | |||
| 8541.49 | Other: | ||||
| 8541.49.10 | Other diodes | Free | 35% | ||
| 8541.49.10.10 | Unmounted chips, dice and wafers[No.] | Estimate → | |||
| 8541.49.10.50 | Other[No.] | Estimate → | |||
| 8541.49.70 | Transistors | Free | 35% | ||
| 8541.49.70.40 | Unmounted chips, dice and wafers[No.] | Estimate → | |||
| 8541.49.70.80 | Other[No.] | Estimate → | |||
| Other: | |||||
| 8541.49.80.00 | Optical coupled isolators[No.] | Free | 35% | Estimate → | |
| 8541.49.95.00 | Other[No.] | Free | 35% | Estimate → | |
| Other semiconductor devices: | |||||
| 8541.51.00.00 | Semiconductor-based transducers[No.] | Free | 35% | Estimate → | |
| 8541.59.00 | Other | Free | 35% | ||
| 8541.59.00.40 | Unmounted chips, dice and wafers[No.] | Estimate → | |||
| 8541.59.00.80 | Other[No.] | Estimate → | |||
| 8541.60.00 | Mounted piezoelectric crystals | Free | 35% | ||
| Quartz designed for operating frequencies of: | |||||
| 8541.60.00.10 | 32.768 kHz[No.] | Estimate → | |||
| 8541.60.00.20 | Not exceeding 1 MHz, except 32.768 kHz[No.] | Estimate → | |||
| 8541.60.00.30 | Exceeding 1 MHz, but not exceeding 5 MHZ[No.] | Estimate → | |||
| 8541.60.00.50 | Exceeding 5 MHZ, but not exceeding 20 MHz[No.] | Estimate → | |||
| 8541.60.00.60 | Exceeding 20 MHZ[No.] | Estimate → | |||
| 8541.60.00.80 | Other[No.] | Estimate → | |||
| 8541.90.00 | Parts | Free | 35% | ||
| 8541.90.00.10 | Frames for photovoltaic cells assembled in modules or made up into panels (as covered by subheading 8541.43.00)[No.] | Estimate → | |||
| 8541.90.00.80 | Other[No.] | Estimate → |
47 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.
Example: base duty and fees on $10000
For HTS 8541.10.00 at the general rate of Free, shipped by ocean, before any Chapter 99 tariffs:
| Base duty (Free) | $0.00 |
| Merchandise Processing Fee (0.3464%, min $34.58) | $34.64 |
| Harbor Maintenance Fee (0.125%) | $12.50 |
| Duty and fees | $47.14 |
Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.