Hello,
We are using rotary switch encoders on our application and they are failing,
after some were opened, certain kind of yellow grease was found, we are not
sure if that's flux since the encoder is being soldered to the board thru
wave soldering.

After cleaning the "defective" encoder with alcohol the encoder works fine.


Anyone has had a similar experience?? soldering process or encoder supplier
fault??

Please help.

Thanks.


Raúl Valdéz.      

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