| 361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
| 500 | DF | ELECTROLYTIC SYSTEMS OR DEVICES {7} |
| 503 | DF | .~ Liquid electrolytic capacitor {5} |
| 508 | DF | .~.~ Anode type electrode {3} |
| 511 | DF | .~.~.~ Wound {4} |
| 514 | ![]() | .~.~.~.~ With heat conductor (e.g., heat sink) |