Component info please

Started by 347sixtyseven, May 05, 2013, 03:21:57 AM

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347sixtyseven

Is someone able to tell me about the capacitor in the picture. I need to order one but am having trouble finding one the same.



GibsonGM

That looks like 5pF, with a 6KV voltage rating.   If this is out of a low-voltage stompbox, pretty much any rating over your power supply voltage will be ok.  If this is in a power supply, I'd want at least a few hundred volt rating.   I also think it might be a tantalum type.   You could go to a poly type for better performance if it's in the audio path.    If you have a cap function on your meter, you could remove it and try to read it to be sure of the value - to be sure it's not like 5nF rather than pF.

Can you tell where in the circuit the cap it located?  It would make it easier to help you find a replacement...such a low value suggests that it might be there to stop oscillation in part of the circuit, and the type wouldn't be terribly important if so (bleeding off very high freq's you cannot hear).   Got a schematic?

Hope that helps, all I can give ya without knowing 'why' it's there... 
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Seljer

^ I'm guessing its from some power supply or other line votlage powered device as you can see the big isolation gap in the PCB beneath it.

347sixtyseven

Thanks guys,

It's actually in a television set. While repairing a dodgy speaker the identical cap that sits behind this one was accidentally damaged.

I thought 5pf but have been struggling to find one the same.

Vikt0r

Did you try to power on the TV set?
If the value is really 5 pf - may happen you wouldn't ever notice any difference: it's value is at the level of parasitic capacitance fluctuation between the traces.
Based on it's voltage rating I suspect it's somewhere in the power supply... just try without first.

armdnrdy

I just designed a new fuzz circuit! It almost sounds a little different than the last fifty fuzz circuits I designed! ;)

347sixtyseven

Thank you very much for the info guys.

I apologise for the off topic nature of the question

Cheers

Gary