Timeline for Determine the min/max resistance of an SMD variable resistor
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 26, 2022 at 11:19 | vote | accept | user2305193 | ||
| Jun 26, 2022 at 11:19 | comment | added | user2305193 | I don't really know about it, I just need a crude way to change the resistance in the circuit, alternativly I'll just use mutliple resistors amd break/cut lines on the board | |
| Jun 26, 2022 at 11:18 | comment | added | Justme | Yes, you would not buy a 15k pot if you need 35k. You would buy a 47k pot. | |
| Jun 26, 2022 at 11:16 | comment | added | Justme | And then there is the contact resistance rating too, but it may not be important to you. | |
| Jun 26, 2022 at 11:16 | comment | added | user2305193 | clearly, if I want to reach e.g. 35kOhm, I'll need a higher-rated variable resistor | |
| Jun 26, 2022 at 11:14 | comment | added | user2305193 | I'll scan the datasheet for this, simply couldn't extract what you just mentioned | |
| Jun 26, 2022 at 11:13 | comment | added | Justme | No, not always. The datasheet says for potentiometers above 1k it is 2% of the total, but for pots less than 1k it is 20 ohms max. | |
| Jun 26, 2022 at 11:11 | comment | added | user2305193 | oh, so the rating always references the maximum resistance... that makes sense, thank you. The tolerance of 25% is specified, I took note. Thank you for the kind answer | |
| Jun 26, 2022 at 11:10 | history | answered | Justme | CC BY-SA 4.0 |