I hate to question the opinion of another forum member but I guess it is all about sharing and knowledge so here goes.
In another thread a forum member said that in order for electrolytic capacitors to maintain their properties, their voltage ratings should not exceed more than twice the voltage expected across them, also allowing for any spikes.
I deal a lot in the 5V range and 3.3V range. with 78XX regulators. I usually use a walwart. the 78XX regulators usually call for a tant cap on the input or output. But the smallest voltage ratings on most of these are 50V. Mouser has lower ratings but they are something like $2+ a piece.
So what is the deal? Should I still use the 50V tants or go into bankruptcy buy the more expensive caps?
In another thread a forum member said that in order for electrolytic capacitors to maintain their properties, their voltage ratings should not exceed more than twice the voltage expected across them, also allowing for any spikes.
I deal a lot in the 5V range and 3.3V range. with 78XX regulators. I usually use a walwart. the 78XX regulators usually call for a tant cap on the input or output. But the smallest voltage ratings on most of these are 50V. Mouser has lower ratings but they are something like $2+ a piece.
So what is the deal? Should I still use the 50V tants or go into bankruptcy buy the more expensive caps?