| 8538.10.00 | 00 | Boards, panels, consoles, desks, cabinets and other bases for the goods of heading 8537, not equipped with their apparatus | X | 3.7% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 35% |
| 8538.90.80 | 60 | Other parts of switchgear, switchboards, panel boards and distribution boards | X | | | |
| 8539.21.40 | 40 | Of a power less than 500 W | No. | | | |
| 8539.21.40 | 80 | Of a power 500 W or more | No. | | | |
| 8539.22 | | Other, of a power not exceeding 200 W and for a voltage exceeding 100 V: | | | | |
| 8539.22.80 | 10 | Of a power not exceeding 150 W: | | | | |
| 8539.22.80 | 40 | Of a power 15 W or more but not exceeding 150 W | No. | | | |
| 8539.22.80 | 70 | Of a power exceeding 150 W | No. | | | |
| 8539.22.80 | 10 | 3-way | No. | | | |
| 8539.31.00 | 50 | With a single plug-in base | No. | | | |
| 8539.31.00 | 60 | With a single screw-in base | No. | | | |
| 8539.31.00 | 40 | 1.2 m, straight tube, of a power 30 W or more but not exceeding 40 W | No. | | | |
| 8540.12 | | Black and white or other monochrome: | | | | |
| 8540.40.00 | | Data/graphic display tubes, color, with a phosphor dot screen pitch smaller than 0.4 mm | | 3% | Free (A+,AU,B,BH, CA,CL,D,E,IL,J, JO,MA,MX,P, SG) | 35% |
| 8540.50.00 | 00 | Data/graphic display tubes, black and white or other monochrome | No. | 3% | Free (A+,AU,B,BH, CA,CL,D,E,IL,J, JO,MA,MX,P, SG) | 35% |
| 8540.71 | | Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes: | | | | |
| 8540.71.20 | 00 | Modified for use as parts of microwave ovens | No. | Free | | 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 | 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 | | 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. | | | |
| 8541.21.00 | 40 | Unmounted chips, dice and wafers | No. | | | |
Harmonized Tariff Schedule of the United States inquiry: no
