Unit - Capacitance 25

 

When large amounts of capacitance are required, electrolytic capacitors are suggested. This cap contains two metal plates separated by an electrolyte (solution of ions). The dielectric has a very thin coating of oxide on the inside of a metal container. capacitance and voltage rating of the capacitor are generally printed on the side of the aluminum case. Dry electrolytic caps range from 4F to several thousand F and have a working voltage of approximately 500 volts.

 

     

 

   

 

 

nElectrolytic capacitors are used when large capacitance values are needed. Capacitance, voltage and most likely tolerance are all printed on the side of the capacitor.