i try to test an smd capacitor out of circuit but get no reading how to do?
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Re: Help with smd capacitor test
i guess you found a bad one .. maybe try test a new one . -
Re: Help with smd capacitor test
i did it with 11 other but it is same is all of them bad?Comment
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Re: Help with smd capacitor test
tested with what?Comment
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Re: Help with smd capacitor test
Hi stj with multimeter in diode and ohmsComment
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Re: Help with smd capacitor test
You really can not test capacitors correctly this way you at a minimum have capacitor checker at minimum but really need a ESR capacitor tester to do this correctlyComment
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Re: Help with smd capacitor test
you mean that it is not possible with multimeter or digital tweeser am talking about microscopic smd capacitors the ones on the tv screen boardsComment
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Re: Help with smd capacitor test
No capacitor can not be tested correctly just using diode test or ohmmeter
With just a ohm meter or diode test will only tell you if is shorted but nothing else really
Now if you have a capacitor tester that shows you UF value that is better than nothing however it does not tell you if the capacitor is good or not for this you need a ESR capacitor tester for this
This is the ESR capacitor tester that I use
https://www.ebay.com/itm/18423015559...QaAnBZEALw_wcBLast edited by sam_sam_sam; 09-05-2021, 09:09 AM.Comment
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Re: Help with smd capacitor test
Thank you for the answer your tools is for proffsComment
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Re: Help with smd capacitor test
our tools cost about the same as a couple of beers in sweden after taxes!
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Re: Help with smd capacitor test
You don't need to use that, the cheap "transistor tester" that has been discussed here and elsewhere works just fine and can be had for the same price as the cheapest beer you can find in Systembolaget."The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: Help with smd capacitor test
oh stj,sam_sam_sam and Per Hanson thank you i have that cheap an will test and se.
tack Per Hanson glömde bort den den ligger nånstans jag skall sökaComment
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Re: Help with smd capacitor test
beer must have increased in price over the last few years - or the taxes increased!!
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Re: Help with smd capacitor test
Oops, the quick glance on eBay fooled me: the prices where for empty cases etc.
So make it 10 beers then
"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: Help with smd capacitor test
beer are not that expensive as it was even taxes Per Hansson can tell
no not 10 beers Per just around 4 or 5Comment
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Re: Help with smd capacitor test
ok i di some test and i get :28pF from both end of the capacitor and it does not show any esr so i can not know if it is good or not. the result is the same on all 12 capacitorsComment
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Then today it randomly sprung to life like a zombie but shortly died thereafter. I have no idea why it would have done that and its the first time I've seen it running. I discharged capacitors on the board last night, then it was sitting today.... -
Howdy all I have a 90uF Capacitor 200/275 VRMS and measured the ESR . Reading says 00.3 Ohms and about 1/2 a second later 00,0 and says low ESR (Really No Kidding).
I have checked it on the multimeter and reading is 94.7uF well within soec as ir has a 25% tolerance on it.
Can anyone advise me is this capacitor likely to fail in the near future or still good to use. -
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