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Potentiometer with two extra connectors

jacklam2048

Feb 22, 2021
33
Joined
Feb 22, 2021
Messages
33
Hi,
I bought a potentiometer (the one at the left in the picture) recently. I found that it has two extra legs (as I indicated by the red arrows) which differs from the potentiometers I normally used (the one at the right in the picture which does not have these two legs).
Can anyone tell me what's the purpose of these two extra legs ?
Thank you very much !
 

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Robu.in

Feb 6, 2021
2
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Feb 6, 2021
Messages
2
Those two pins appear to be mounting pins. They are used for mounting the potentiometer onto a PCB.
 

bertus

Moderator
Nov 8, 2019
3,364
Joined
Nov 8, 2019
Messages
3,364
Hello,

From adafruit: Panel Mount Right Angle 10K Linear Potentiometer w/ On-Off Switch
https://www.adafruit.com/product/3395
There you will also see the posted picture.
The resistance value may differ on your potentiometer.

Bertus
 

jacklam2048

Feb 22, 2021
33
Joined
Feb 22, 2021
Messages
33
Thanks for all ! Yes, I realized the two extra legs act as ON/OFF switch while the other 3 legs act as the pins for potentiometer.
Thanks a lot to all !
 
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