| ??? 11/17/13 11:00 Read: times |
#190145 - pot limits Responding to: ???'s previous message |
Hi Raghunathan,
You know the maximum current the potentiometer wiper/contacts will have to conduct when set at zero ohms. Hook one up to a power supply and stress test it. Find out how much current it can handle. If you need, I have a 20 A supply I use for plating. Send one and I'll let you know if it melts or lets the smoke out first, and at what current. But in all seriousness, is it really likely that 20 mA will cause it to fail? Good luck, Joe |
| Topic | Author | Date |
| Power rating of potentiometers | 01/01/70 00:00 | |
| Not the point | 01/01/70 00:00 | |
| show me such | 01/01/70 00:00 | |
| (was) incorrect | 01/01/70 00:00 | |
| not your average "pot" | 01/01/70 00:00 | |
| Specs that are not normally told.. | 01/01/70 00:00 | |
| power | 01/01/70 00:00 | |
| test bench vs field design | 01/01/70 00:00 | |
| That was kind of my point | 01/01/70 00:00 | |
| pot limits | 01/01/70 00:00 | |
| While I don't disagree ... there are different failure modes | 01/01/70 00:00 | |
| Bourns says: "yes." | 01/01/70 00:00 | |
| Tesla says: no | 01/01/70 00:00 | |
| cermet or wirewound | 01/01/70 00:00 | |
No big difference, if it all | 01/01/70 00:00 |