need some help with breakdown voltage

[cuban b]

The super rooster says to use capacitors with a breakdown voltage of 50v. Could someone give me a quick rundown of what that means. Maybe some do's and don'ts in relation to rc cars.

Thanks in advance
Joe

[RockDragon]

"0.1 uF (50V) capacitor"

....0.1 is the value capacitance power in micro farad
....50V is the max. value of the voltage that the capacitor can handle, over than that will permanantly distroy the capacitor and/or the whole circuit.

As the safety rule .... always use at least double or even triple the voltage value of the working voltage because there always be spike happened.

NOTE: Some types of capacitor are polarity as for DC voltage applications, normally will have indication as "+" for positive voltage and "black strip" for negative voltage. Some are non-polarity types, therefore, can be installed either way.

Caution: Always know exactly what and how to do before you do it!

[cuban b]

So can I assume that a 25V capacitor is fine for an rc running on 7.2 volts?

[JasonInAugusta]

Originally Posted by RockDragon

NOTE: Some types of capacitor are polarity as for DC voltage applications, normally will have indication as "+" for positive voltage and "black strip" for negative voltage. Some are non-polarity types, therefore, can be installed either way.

Caution: Always know exactly what and how to do before you do it!

Those are called electrolytic capacitors.

[RockDragon]

Thanks Jason... I didn't want to get too much electronics, just try to keep it most simple. But here is some details of capacitor types, in case someone would be interest.