Identify this chip please.

Thread Starter

bogey912

Joined Oct 16, 2016
32
I'm trying to troubleshoot a short on a circuit board for a wine cooler. Its a green round chip and is marked on the board as RTC. When I try to google this chip I keep getting "real time clock". Is this a type of a MOV? Is there a way to test it? Thanks for any help.RTC.jpg
 

JohnInTX

Joined Jun 26, 2012
4,213
Last edited:

Thread Starter

bogey912

Joined Oct 16, 2016
32
It’s an inrush current limiter, an NTC thermistor IIRC.
https://en.m.wikipedia.org/wiki/Inrush_current_limiter

Lots of great wine fridge fixit stuff here. Pg 1 of the schematic shows the RTC.
https://forum.allaboutcircuits.com/threads/success-stories-repair-thermoelectric-cooler.101748/page-5#post-1130015

Check out the whole thread.
Most fixes involve replacing the electrolytics with quality low ESR ones. Parts lists for replacements are in the thread.
Good luck!
Thanks for the info John ! I changed all the caps and still have a short :)
 
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