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Need help determining Cap value

Thread starter #1
Need help determining value of a blown cap. has a 160 57 on it but those don't seem to match any standard caps.
20190123_180912.jpg
Thanks in advance
 
Thread starter #4
Thanks for helping. I was getting nowhere and hoping someone smarter than me could help
It was on a power converter. 120 AC to 300 DC (yes DC)
I would think the minimum multiplier would have to be 1 (xx * 0 = 0), that why the 160 didn't make sense.
 

Nigel Goodwin

Super Moderator
Most Helpful Member
#5
I would think the minimum multiplier would have to be 1 (xx * 0 = 0), that why the 160 didn't make sense.
As suggested, it could be either 16pF or 160pF, there seems little in the way of a standard marking for them.

I'm presuming your supply is a switch-mode one?, and these commonly have a high voltage capacitor across the across the primary (as part of a snubber network) and they often go S/C, as easily spotted by a crack in them, or a burnt hole.

Assuming that's what it's doing, 160pF sounds more likely, and it needs to be at least 2000V rated - such capacitors tend to be hard to find, they used to be quite common in televisons (where they also failed).
 

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