How to calculate breakdown voltage of capacitor?

[ex4]

hello
I want to calculate breakdown voltage of a plate capacitor. I only got info on the dielectric constant, the plate gaps, and the plate wide area, is it possible to calculate it using that information?

 

[girih192002]

Basically, when you exceed the rated voltage, as with any other rated component, the capacitor can't handle it and the dielectric will probably melt or something, and cause a short circuit between the plates. This is the only thing I can think you mean by "capacitor breakdown". The other use of the term "breakdown" in electronics is for breakdown voltages in diodes.

For capacitors in series, 1/C[total] = 1/C[1] + 1/C[2] + 1/C[3] +...

For caps in parrallel, C[total] = C[1] + C[2] + C[3] + ...

The current and v0ltage are related by i = C(dV/dt), which are just derived from the equation Q=CV.

The rated voltage for the capacitor will be on there.

If its an electrolytic capacitor, you might wanna ramp up the voltage on it, for fun, and watch it explode!!

 

[ex4]

hehehe
i mean i want to calculate the breakdown voltage of my home made plate capacitor for the watercell fuel based on that info

 

[IanP]

Have a look at:
https://en.wikipedia.org/wiki/Capacitor#Breakdown_voltage

Rgds,
IanP

 

[FvM]

i want to calculate the breakdown voltage of my home made plate capacitor for the watercell fuel

Happy developing!