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???
11/17/06 23:42
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#128223 - Ceramics
Responding to: ???'s previous message
Andy Peters said:
Now that you can get high-ish (even 22uF and more!) capacitance inexpensive ceramics, there's no need for tantalums.


Well, yeah, I regularly use ceramics up to 100µF. Their small size, very low ESR, (relative) insensitivity to temperature, their being non-polarised and their ability to withstand electrical abuse like surge currents and overvoltage make them an ideal choice for most of the devices I design.

You do have to be aware that, for some circuits, their ESR can actually be too small and can cause loop instability!


Rob.

List of 21 messages in thread
TopicAuthorDate
SMPS`s capacitor heating            01/01/70 00:00      
   ESR            01/01/70 00:00      
      ESR of capacitor            01/01/70 00:00      
   Ripple current            01/01/70 00:00      
      a clearcut example            01/01/70 00:00      
          come on Erik where is there any statment            01/01/70 00:00      
            you get neither            01/01/70 00:00      
               Erik            01/01/70 00:00      
                  Terry            01/01/70 00:00      
      Thanks Kai            01/01/70 00:00      
   Check that the capacitor is installed correctly            01/01/70 00:00      
      capacitor installation            01/01/70 00:00      
         Capacitor installion orentation check            01/01/70 00:00      
            he did not say much at all            01/01/70 00:00      
               Actually he said quite a lot.            01/01/70 00:00      
                  I do not            01/01/70 00:00      
                  What do Europeans Call ....            01/01/70 00:00      
                  Thanks Charles Bannister            01/01/70 00:00      
         tantalums            01/01/70 00:00      
            Ceramics            01/01/70 00:00      
               and - again, the difference between ....            01/01/70 00:00      

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