Electronics > Repair
Does this look like a fuse
(1/1)
Ground_Loop:
While troubleshooting a power supply I found two of these that indicate open. I’m guessing they are fuses.  The same ones on a different operating channel are dead shorts. Anyone happen to have a schematic for a R&S 3040 power supply channel?

Harry_22:
Hi!
Is it R&S power supply? It also has Fast 7A in parallel.
mikeselectricstuff:
Yes, that's a fuse
fzabkar:

--- Quote from: Ground_Loop on December 15, 2024, 07:57:10 pm ---While troubleshooting a power supply I found two of these that indicate open. I’m guessing they are fuses.  The same ones on a different operating channel are dead shorts.
--- End quote ---

The logo belongs to Littelfuse.

https://www.google.com/search?q=Littelfuse+7a+smt&num=10&newwindow=1&udm=2
Ground_Loop:

--- Quote from: Harry_22 on December 15, 2024, 08:01:38 pm ---Hi!
Is it R&S power supply? It also has Fast 7A in parallel.

--- End quote ---

Yes. Channel 4 crapped out.  Both fuses are gone. You sure it’s parallel?
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