Capacitor Leakage Current

[M-BX5]

Hi I'm leaning the capacitor world and I would like to know if the
Capacitor Leakage Current high or lower is better. which one?

Thank you

[Wester547]

Re: Capacitor Leakage Current

Lower. Capacitors with high leakage current (or low insulation resistance) won't hold a voltage very well.

[M-BX5]

Re: Capacitor Leakage Current

Thank you

[rhomanski]

Re: Capacitor Leakage Current

In an audio circuit they can cause a high noise floor(hiss).

[M-BX5]

Re: Capacitor Leakage Current

I was checking the
nichicon UKA
I can't find the leakage on this cap


the UKA here don't have leakage on the datasheet. or even @ Mouser.com


and

nichicon UFW
has a Leakage Current: 3300 uA Mouser.com



the datasheet from both cap UKA and UFW looks almost the same accept the UFW that has 63v and 100v caps besides that its very identical.

can you guys give some light in my dark tunnel and tell me if both caps has the same leakage.

Thank you.

[PeteS in CA]

Re: Capacitor Leakage Current

I was checking the
nichicon UKA
I can't find the leakage on this cap


the UKA here don't have leakage on the datasheet. or even @ Mouser.com


and

nichicon UFW
has a Leakage Current: 3300 uA Mouser.com



the datasheet from both cap UKA and UFW looks almost the same accept the UFW that has 63v and 100v caps besides that its very identical.

can you guys give some light in my dark tunnel and tell me if both caps has the same leakage.

Thank you.

On the UKA series, leakage is specified in the chart of "Performance Characteristics", above the matrix of values and voltages. The same is true of the UFW series, and the leakage specification for the two series is the same.

[M-BX5]

Re: Capacitor Leakage Current

On the UKA series, leakage is specified in the chart of "Performance Characteristics", above the matrix of values and voltages. The same is true of the UFW series, and the leakage specification for the two series is the same.

Thank you. you made it very clear for me now, since some vendors tell you the leakage in one cap but not in other. Now for sure i can look the chart and get it right next time.

Thank you again.

I'm still leaning

[PeteS in CA]

Re: Capacitor Leakage Current

Thank you. you made it very clear for me now, since some vendors tell you the leakage in one cap but not in other. Now for sure i can look the chart and get it right next time.

Thank you again.

I'm still leaning

The only time you should worry about learning is when you've stopped.

[M-BX5]

Re: Capacitor Leakage Current

The only time you should worry about learning is when you've stopped.

That not going to happen.

[Chris Edwards]

Re: Capacitor Leakage Current

Capacitor leakage current is an important parameter in amplifier coupling circuits or in power supply circuits. Best choices for coupling and storage applications being Teflon and the other plastic capacitor types (polypropylene, polystyrene, etc) because the lower the dielectric constant, the higher the insulation resistance.