Hi everyone.
i have a doubt about the capacitors.
I heard about ceramic(disc shape) capacitors and electrolytic capacitors(condensers). what is the difference between these two?
There is no polarity restriction for disc shape capacitors, but there for condensers. mostly the disc shape capacitors are available in PFs. But the others are mostly available in micro farads. Can i use same rating disc type in place of electrolytic?

thank you.

 

This may be of some small use: http://www.allaboutcircuits.com/vol_1/chpt_13/5.html

 

This may be of some small use: http://www.allaboutcircuits.com/vol_1/chpt_13/5.html

Hi
i read the article.
still had a doubt. Can i use a polarized capacitor in place of a unpolarized cap?
Another case, consider a filter capacitor at the output terminals of a rectifier. A 1000microfd capacitor is used to make it ripple free. What will happen if an unpolarized cap is used?
thanQ

 

Hello,

A lot of information on capacitors can be found in thr EDUCYPEDIA.
http://www.educypedia.be/electronics/capacitors.htm

A lot of other components are there also.

Passive semiconductors technology: Batteries Diodes Photovoltaic systems Switches Buzzers Diode types Quartz crystals Thermoelectric Capacitors General overview Relays Transformers Capacitor types Heat Sinks Resistors Transformers-RF Coils Photo diode Resistors-Nonlinear Transformer types

Greetings,
Bertus

 

still had a doubt. Can i use a polarized capacitor in place of a unpolarized cap?

Only if proper polarity for the polarized cap is maintained, if ESR (equivalent series resistance) is not a consideration, and the temperature and working voltage ratings are taken into consideration.

Another case, consider a filter capacitor at the output terminals of a rectifier. A 1000microfd capacitor is used to make it ripple free. What will happen if an unpolarized cap is used?

You may have an insurmountable challenge finding a non-electrolytic 1000 uF capacitor. You could make up a bank of several smaller caps in parallel, but such would become both expensive and tedious.

 

thanQ bertus & thingmaker3.