| 361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
| 500 | DF | ELECTROLYTIC SYSTEMS OR DEVICES {7} |
| 523 | DF | .~ Solid electrolytic capacitor (e.g., dry electrolytic capacitor) {8} |
| 525 | ![]() | .~.~ With significant electrolyte or semiconductor {2} |
| 526 | DF | .~.~.~> Paste or gel |
| 527 | DF | .~.~.~> Organic salt (e.g., TCNQ) |