Capacitor

Status
Not open for further replies.

Rumieus

New Member
Please view the attachment.
Both capacitor is the same?
They both can charge and discharge?
The different is the one with + sign is electrolytic and the other is ceramic but they both react the same in DC or AC?

and electrolytic must not be connected wrongly or the capacitor will explode..
 

Attachments

  • untitled.PNG
    1.8 KB · Views: 159
Last edited:
The one on the right is a polarised capacitor and requires a DC bias equal to the peak voltage of the waveform if it's to be used for AC.

The one on the left doesn't require a DC bias for AC.
 
Non-polarized electrolytic capacitors are made and sold.
The lowest value electrolytic capacitor I have ever seen is 0.47uF. 16nF is 29 times less.
 
They make electrolytics down to 1nF actually, you just have to get a tantalum electrolytic.

Yeah yeah, you can punch me in the arm.
 
Just googled it (I know, should have done it before posting). Well, what do ya know, there are tantalum electrolytics, but you know what I was referring to.
 
I wonder what is the electrolyte in a tantalum capacitor? Orange juice? Grape juice? Coca-cola? Pepsi? Beer? A martini?
 
Ok. So both capacitor act the same in Dc, they hold charge, and discharge..
The reason to use a ceramic or electrolytic is because their value?
Electrolytic value is 1uF ++
Ceramic value is below 1uF?

Am I right?
 
Here are a couple of tutorials on capacitors that you might find helpful:

**broken link removed**

**broken link removed**

Perhaps more than you ever wanted to know...but the explanations of the different types of capacitors should answer you questions.

Ken
 
Rumieus said:
Ok. So both capacitor act the same in Dc, they hold charge, and discharge..
The reason to use a ceramic or electrolytic is because their value?
Electrolytic value is 1uF ++
Ceramic value is below 1uF?

Am I right?
Click to expand...

As a general rule, yes. But they do make electrolytics less than 1uF, although not that common.
 
High capacity needed? Electrolytics.
Wide bandwidth needed? Ceramic.
Both needed? Maybe tantalums, maybe out-of-luck.

In any case, avoid capacitors made with unobtainium.
 
Last edited:
rezer said:
As a general rule, yes. But they do make electrolytics less than 1uF, although not that common.
Click to expand...
You can also get ceramics and polypropylene capacitor >1:mu:F, but 1:mu:F is the usual divide between electrolytics and ceramic.
 
Status
Not open for further replies.

Similar threads

G
  • Question
Why use this Capacitor
Replies
16
Views
1K
aliarifat794
A
D
Capacitor in parallel with switch.
Replies
2
Views
834
Tony Stewart
M
  • Question
Sprague Capacitor Analyzer
Replies
2
Views
1K
Mike o Meter
M
J
  • Question
Testing a Capacitor Microfarad Rating that has a Resistor
Replies
4
Views
691
Janglers
J
  • Question
Anyone Know Where To Purchase 3/4 inch capacitor clamps?
Replies
8
Views
1K
Tony Stewart
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…