| 8540.81.00 | 00 | Receiver or amplifier tubes | No. | 4.2% | Free (A+,AU,B,BH, CA,CL,D,E,IL,J, JO,MA,MX,P, SG) | 35% |
| 8540.89.00 | 20 | Gas and vapor electron tubes | No. | | | |
| 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 | 60 | Microwave | 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 | With an operating frequency not less than 100 MHz | No. | | | |
| 8541.29.00 | 75 | With an operating frequency not less than 30 MHz | 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: | | | | |
| 8541.50.00 | | Other semiconductor devices | | 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. | | | |
| 8542.31.00 | 00 | Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits | No. | Free | | 35% |
| 8542.32.00 | 01 | Not over 128 megabits | No. | | | |
| 8542.32.00 | 20 | Over 128 megabits but not over 256 megabits | No. | | | |
| 8542.32.00 | 21 | Over 256 megabits but not over 512 megabits | No. | | | |
| 8542.32.00 | 22 | Over 512 megabits but not over 1 gigabit | No. | | | |
| 8542.32.00 | 23 | Over 1 gigabit | No. | | | |
| 8543 | | Electrical machines and apparatus, having individual functions, not specified or included elsewhere in this chapter; parts thereof: | | | | |
| 8543.70.20 | 00 | Physical vapor deposition apparatus | No. | 2.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 35% |
| 8543.70.80 | 00 | Microwave amplifiers | No. | 2.6% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 35% |
