Cleaning up capacitor leakage
I'm doing some OGXbox refurbs and the clock capacitors (PowerStor Aerogel) notoriously leak all over the board. I'm not sure what you call the electrolytic fluid which comes out and gets all over the circuit board, but I would like to know the best process for cleaning it up. Should I hit it with vinegar or isopropyl? Or both? Or something else?
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Re: Cleaning up capacitor leakage
just isoprpanol -
Re: Cleaning up capacitor leakage
99% IPA or Acetone. Depending on how stubborn it is.Comment
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Re: Cleaning up capacitor leakage
Okay, thanks!Comment
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Re: Cleaning up capacitor leakage
be carefull with acetone, you can take the markings off some parts with itComment
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Re: Cleaning up capacitor leakage
Don't forget try clean water too...especially since failed capacitors tend to use aqueous (i.e. water) electrolytes and water will dissolve it once more.Comment
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Re: Cleaning up capacitor leakage
I would recommend cleaning using acetic acid if it leaked on the board.
Every time I do I can see bubbles and hear fizzing as I put it on the areas with leaked electrolyte, so it does a chemical reaction that much better removes it.
Of course you need to clean very thoroughly after with IPA as acetic acid will otherwise do damage on its own...
Here an example of it in action:
https://www.badcaps.net/forum/showpo...1&postcount=34"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Hi people, I hope this is the correct spot to post this, I'm new to the forum.
I have an RTX 3080 Founders Edition which has a burnt up capacitor (it was in parallel with another capacitor which appears damaged too), so I am hoping to be able to identify the capacitor values and order replacements.
I hope these photos make it clear which component I am referring to:
(yes, the soldering is a bit botched from removing the blown one, I know)
I have found the board schematic (attached), but there does not seem to be a boardview available. I have never... -
I replaced some capacitor which is located on optical pickup pcb which is shown in the table below(PCB #2).Because it have been out of order.
Now,It works very well,But I just have found that all caps (6svpc100my and other part number as well) ,which is shown in the table below, has ultra-high ripple current spec.
It is not able to obtain any capacitor which can be a substitute for this ultra-high ripple current nichicon capacitor.
So I replaced it with samxon and rubycon's general capacitor(GP,YXA series).
I know that these capacitor will not last as long as nichicon capacitor... -
I desoldered samwha NF capacitor(50v 5.6uf) from PCB circuit of 29inch CRT TV which have symptoms of no display after I heard sound of inrush of current to TV whenever I switch on this television.
I measured ESR value of this non-polarized capacitor(samwha NF capacitor 50v 5.6uf) by means of MESR-100 ESR meter and It displayed 0.3 ohm
And When I measured its capacitance with digital multimeter and LCR-T4 Mega328 meter, It displayed 10uf from DMM and 8uf from LCR-T4 meter.
I found catalogue of samwha capacitor(samwha-catalogue_3.pdf file), which is attached to this thread,... -
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Judging from above ESR Meter Table,I think It is necessary to replace this sms capacitor.So I visited local electronics shop,and I purchased 160v 2.2uf rubycon YK capacitor.
But when I browse through rubycon YK datasheet,I found that there is no ripple current rating for 160v 2.2uf specification. But On the contrary, I found 39 mA ripple current rating for 160v 2.2uf SMS capacitor.
Rubycon YK DataSheet (b... -
a few days ago I finally purchased mser-100 v2 and I tested its abillity of measuring ESR value.
I found that It shows pretty accurate ESR value for electrolytic capacitor,But When I measure polymer capacitor of dreamcast game console,I found that one third of polymer capacitor's ESR value is more than twice the value of ESR meter table.(for example, I measured one polymer capacitor of 6.3v 100uf, It showed ESR value of 7.68)
Although my dreamcast now turns 20 years old but it still works. I occasionally have played game with it.
Is this ESR value of polymer capacitor correct?...
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