[R-390] Cap Voltage

[Roger Ruszkowski]

Fellows,

I forgot what I read.
There was once thread on AC caps and how much DC voltage could be used on them in a power supply.
If my cap is marked 400VCA 20UF how much DC can I apply to the cap if I use it as a filter cap in a DC power supply and want it to last?

Thanks

Roger AI4NI