| SIC Codes: | 3674 |
| NAICS Codes: | 334413 |
Companies in this industry design and manufacture discrete and passive components. Discrete components are semiconductors with just one circuit element, either passive or active. Passive components include resistors, capacitors, inductors, and diodes, while active components include transistors and vacuum tubes. These components are used by manufacturers of automobiles, computers, industrial equipment, medical devices, military equipment, and telecommunications products.