I can't find a replacement potentiometer

[Jasonmrenfro]

hi the potentiometer on my wife's breast pump broke and instead of spending 400$ on a new one I can just replace the broken part. But I can't seem to find a match. It's a b10k but I can't find the right pin layout. Can anyone help? It has 5 pins. Three in front and one on each side

 

[Minder]

Digikey has a selection, you may have to adapt one if not quite the same.
http://www.digikey.ca/product-detail/en/EVU-F2AF30B14/P3C3103-ND/243605
M.

 

[duke37]

It looks to me that the pot is connected to the three centre pins. The outer two look to be connected to the case for screening. Just get a 10k pot, but linear or log?

 

[Gryd3]

It looks to me that the pot is connected to the three centre pins. The outer two look to be connected to the case for screening. Just get a 10k pot, but linear or log?

They are inexpensive enough to buy one of each. You could even remove that one and try a couple resistors.
(Potentiometer looks like it's setup as a voltage divider at the moment... I would certainly assume linear. Log pots are typical for audio, but when else would they be common? Can you tell lack of experience is asking this Q?)

 

[duke37]

Gryd3
"Can you tell lack of experience is asking this Q?"

I have no experience of breast pumps, do you?

Duke37

 

[shrtrnd]

Well, you're talking about replacing the pot, so I assume you have soldering skills.
I'd pull the existing pot, and check it for manufacturer information stamped on it.
If it has data, you can look for an exact replacement.
You're looking for a replacement that's the same physical size if you can't ID who made the pot.
Minder's suggestion is good, you just need to get a pot with similar physical measurements so reassembly of the unit isn't a problem.

 

[computerlen]

Just a note to say that the two outer pins are for mounting the pot. The 3 inner ones are the 10K pins.

 

[Colin Mitchell]

beast pumps are a beast to repair.