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Old 2nd October 2012, 04:00 PM   #1
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Default ceramic capacitor

Gooday all,
Can anybody please tell me if you can use a multilayer ceramic cap in the place of an ordinary ceramic cap ? The values are the same.

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Jan
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Old 2nd October 2012, 04:11 PM   #2
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Yes!
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Old 2nd October 2012, 04:14 PM   #3
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Default Multilayer ceramic

Thanks Osvaldo !
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Old 2nd October 2012, 04:17 PM   #4
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depends on the specs required. for general supply bypassing, yes. if temperature stability or accuracy are important then spec comparison is in order.
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Old 2nd October 2012, 05:06 PM   #5
raul_77 is offline raul_77  Spain
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The only good ceramic capacitor are the NPO (COG) best use any metalic film, at least poliester. You can read about capacitors in this web page, perhaps the best work about capacitors ever made:

Capacitor Sounds, Speaker Cables and Crossover Inductors.
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Old 2nd October 2012, 06:06 PM   #6
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Thanks for the great info you all !

Regards
Jan
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Old 2nd October 2012, 06:53 PM   #7
tvrgeek is offline tvrgeek  United States
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Yea, stay away from X7R and Z5U in audio.
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Old 3rd October 2012, 05:35 PM   #8
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NP0´s are needed only in VFO´s and anywhere can be frequency drift with temperature,in audio, a +-20% temperature derivation is of no care.
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Old 3rd October 2012, 05:53 PM   #9
wg_ski is offline wg_ski  United States
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It's not the tempco of class 2 and 3 ceramics that are the problem. The capacitance varies with voltage which is a direct cause of 3rd order IM distortion. NPOs are needed anywhere you need to keep the signal clean. For a rail bypass cap, you might get away with a class 2 or 3. For a Miller cap, phase lead comp, coupling, or a tone control - don't.
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Old 3rd October 2012, 06:39 PM   #10
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Quote:
Originally Posted by wg_ski View Post
It's not the tempco of class 2 and 3 ceramics that are the problem. The capacitance varies with voltage which is a direct cause of 3rd order IM distortion. NPOs are needed anywhere you need to keep the signal clean. For a rail bypass cap, you might get away with a class 2 or 3. For a Miller cap, phase lead comp, coupling, or a tone control - don't.
Oh, a big thing to make an audio oscillator using them as giant varicaps!
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