| 8537.10.90 | 50 | Panel boards and distribution boards | No. | | | |
| 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% |
| 8538.90.10 | 00 | Of an article of heading 8537 for one of the articles described in additional U.S. note 11 to chapter 85 | X | Free | | 35% |
| 8538.90.80 | 60 | Other parts of switchgear, switchboards, panel boards and distribution boards | X | | | |
| 8539.21.20 | | Designed for a voltage not exceeding 100 V | | Free | | 20% |
| 8539.29.10 | 00 | Designed for a voltage not exceeding 100 V: | | | | |
| 8539.29.30 | 50 | Designed for a voltage of 12 V or more but not exceeding 14 V | No. | | | |
| 8539.29.40 | 00 | Designed for a voltage exceeding 100 V | No. | 2.6% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 20% |
| 8540.12.10 | | Television picture tubes having a straight line dimension across the faceplate greater than 29 cm but having no straight line dimension across the faceplate that exceeds 42 cm: | | | | |
| 8540.71 | | Microwave tubes (for example, magnetrons, klystrons, traveling wave tubes, carcinotrons), excluding grid-controlled tubes: | | | | |
| 8540.71 | | Magnetrons: | | | | |
| 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% |
| 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 | 50 | Zener | No. | | | |
| 8541.40 | | Photosensitive semiconductor devices, including photovoltaic cells whether or not assembled in modules or made up into panels; light-emitting diodes: | | | | |
| 8541.40.60 | 20 | Assembled into modules or made up into panels | No. | | | |
| 8541.60.00 | 10 | Quartz designed for operating frequencies of: | | | | |
| 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% |
| 8543 | | Electrical machines and apparatus, having individual functions, not specified or included elsewhere in this chapter; parts thereof: | | | | |
| 8543.20.00 | 00 | Signal generators | No. | 2.6% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 35% |
| 8543.30.00 | 00 | Machines and apparatus for electroplating, electrolysis or electrophoresis | X | 2.6% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 35% |
| 8543.70 | | Other machines and apparatus: | | | | |
| 8543.70.60 | 00 | Articles designed for connection to telegraphic or telephonic apparatus or instruments or to telegraphic or telephonic networks | X | 2.6% | Free (A,AU,B,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 35% |
| 8543.70.70 | 00 | Electric luminescent lamps | No. | 2% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 20% |
| 8543.70.85 | 00 | For electrical nerve stimulation | No. | Free | | 35% |
