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monolithic capacitors

 
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guitarman0



Joined: 31 Aug 2005
Posts: 3
Location: Ohio

PostPosted: Wed Aug 31, 2005 1:00 pm    Post subject: monolithic capacitors Reply with quote

I'm looking for a reliable method of testing monolithic capacitors, in or out of circuit. Anyone have any tips?
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Mon Sep 05, 2005 7:01 pm    Post subject: Reply with quote

Is it an Electrolytic ? If yes a esr meter, and or a capacitance meter.
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guitarman0



Joined: 31 Aug 2005
Posts: 3
Location: Ohio

PostPosted: Mon Sep 05, 2005 9:01 pm    Post subject: Reply with quote

No, it is not an electrolytic.....it's a monolithic capacitor..very similar to a ceramic disk cap.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Tue Sep 06, 2005 12:34 pm    Post subject: Reply with quote

Capacitance meter. I have a fluke 175. You can find a capacitance meter on ebay for cheep.
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guitarman0



Joined: 31 Aug 2005
Posts: 3
Location: Ohio

PostPosted: Tue Sep 06, 2005 3:21 pm    Post subject: Reply with quote

I wish it were that simple, but with monolithic capacitors I have found that they can read their correct capacitance rating on a cap meter but still be bad. Monolithic capacitors are normally 1uf or below in capacitance and range in voltage from 50v to 100v.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Wed Sep 07, 2005 2:21 am    Post subject: Reply with quote

Any questions, replace it. Cap meter will give you a value. Wrong. It will. Esr won't. It will tell you if it's dry. It will tell you if it's good or bad. U need 2 meters. ESR and Capacitance. I really can't explain it better than this. Both meter's in or out of circuit. Shorted? Dry? A capacitance meter read's the value only. ESR = equivalant series reistance. Short for real meaning." Dry or not. Under 1uf? Buy a good one. "Meter." A cap is about $.40. A good meter is about $200.
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