| 8540.99.40 | 00 | Electron guns; radio frequency (RF) interaction structures for microwave tubes of subheadings 8540.71 through 8540.79, inclusive | X | Free | | 35% |
| 8540.99.80 | 00 | Other | X | Free | | 35% |
| 8541 | | Diodes, transistors and similar semiconductor devices; photosensitive semiconductor devices, including photovoltaic cells whether or not assembled in modules or made up into panels; light-emitting diodes; mounted piezoelectric crystals; parts thereof: | | | | |
| 8541.10.00 | | Diodes, other than photosensitive or light-emitting diodes | | Free | | 35% |
| 8541.10.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 8541.10.00 | 50 | Other: | | | | |
| 8541.10.00 | 70 | Other: | | | | |
| 8541.10.00 | 70 | With a maximum current of 0.5 A or less | No. | | | |
| 8541.10.00 | 80 | Other | No. | | | |
| 8541.21.00 | | Transistors, other than photosensitive transistors: | | | | |
| 8541.21.00 | | With a dissipation rate of less than 1 W | | Free | | 35% |
| 8541.21.00 | 75 | Other: | | | | |
| 8541.21.00 | 75 | With an operating frequency not less than 100 MHz | No. | | | |
| 8541.21.00 | 95 | Other | No. | | | |
| 8541.21.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 8541.29.00 | | Other | | Free | | 35% |
| 8541.29.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 8541.29.00 | 75 | Other: | | | | |
| 8541.29.00 | 75 | With an operating frequency not less than 30 MHz | No. | | | |
| 8541.29.00 | 95 | Other | No. | | | |
| 8541.30.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 8541.30.00 | 80 | Other | No. | | | |
| 8541.30.00 | | Thyristors, diacs and triacs, other than photosensitive devices | | Free | | 35% |
| 8541.40 | | Photosensitive semiconductor devices, including photovoltaic cells whether or not assembled in modules or made up into panels; light-emitting diodes: | | | | |
| 8541.40.20 | 00 | Light-emitting diodes (LED's) | No. | Free | | 20% |
Harmonized Tariff Schedule of the United States inquiry: 3920590000
