Guru
Joined: 13/10/2014
Location: AustraliaPosts: 1860
| Posted: 08:38am 06 Jan 2023 |
Just received some "Brand Name" 10,000uf Electros from one of the big prominent AU electronic suppliers.
Running at their rated voltage, the current drawn was less than 45ua (microamps) and slowly dropping.
Unlike the NIPPON 10,000uf 100v from Ali:
None could run at the rated voltage - way too much current drawn and some starting to heat "big time".
I had to drop the 100v rating back to 80 volts with a 3ma to 6ma draw, but still very slowly rising. If caps were warmed, the current started to rise faster then I would like.
It's not if they will fail, only when and how quickly it will happen. I could never leave an inverter running unattended with those obviously fake caps. Even cut one open to make sure there wasn't a smaller cap hiding inside.
Edited 2023-01-06 18:39 by KeepIS