| Electronics > Repair |
| safe way to remove large smd caps |
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| cncjerry:
Hi, I have a board with five, 22uf electrolytic SMD caps that are sort of close together. They are surrounded by a lot of smaller devices that I can't afford to move as I have a bad tremor. I have hot air in different formats but heating that whole area is risky for me because if any of the smaller devices move, I doubt I could solder them back into place. I was wondering if I heated the entire cap outer shell if they would lift off? I dont mind destroying the caps as one or two are suspect. Any other ways to get them off? I've had SMD caps that have long PCB traces under them cause problems too. thanks Jerry |
| voltsandjolts:
Have you got two soldering irons, one for each end of the cap? |
| Audiorepair:
Get a pair of side cutters, grip the body of the cap, and twist it maybe 2 or 3 revolutions until it breaks off. This leaves the soldered leads on the PCB pads without damaging anything. Then you can wipe the leads off the pads with a soldering iron. This sounds kind of brutal, but it works. https://www.youtube.com/shorts/z7ZkzVe1ySs |
| u666sa:
Apply flux for flow. Apply low melt solder. Remove. :popcorn: |
| cncjerry:
I tried two soldering irons today and the issue is I need two hands when using my right hand as my tremor is really bad. I like the twisting idea, just hope I don't lift any pads. Is that pretty safe? I have really good tools for trimming, cutting, etc. |
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