| 8540.91.15 | 00 | Front panel assemblies | X | 5.4% | Free (A+,AU,B,CA, CL,D,E,IL,J,JO, MX,P,SG) 3.7% (BH) 3.5% (MA) | 35% |
| 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% |
| 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 | 60 | Microwave | No. | | | |
| 8541.10.00 | 70 | With a maximum current of 0.5 A or less | No. | | | |
| 8541.21.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 8541.21.00 | 75 | With an operating frequency not less than 100 MHz | No. | | | |
| 8541.29.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 8541.29.00 | 75 | With an operating frequency not less than 30 MHz | No. | | | |
| 8541.30.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 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% |
| 8541.40.60 | 10 | Unmounted chips, dice and wafers | No. | | | |
| 8541.40.60 | 20 | Assembled into modules or made up into panels | No. | | | |
| 8541.40.70 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 8541.50.00 | | Other semiconductor devices | | Free | | 35% |
| 8541.50.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
| 8541.60.00 | | Mounted piezoelectric crystals | | Free | | 35% |
| 8541.60.00 | 10 | 32.768 kHz | No. | | | |
| 8541.60.00 | 20 | Not exceeding 1 MHz, except 32.768 kHz | No. | | | |
| 8541.60.00 | 30 | Exceeding 1 MHz, but not exceeding 5 MHZ | No. | | | |
| 8541.60.00 | 50 | Exceeding 5 MHZ, but not exceeding 20 MHz | No. | | | |
| 8541.60.00 | 60 | Exceeding 20 MHZ | No. | | | |
