I really don't think a 50V electrolyic capacitor suffers a bit if you
only put 10V across it.

I've also never seen any mention of this in any manufacturer's data
sheets or catalogs.

Jim Adney
Madison, WI 53711 USA

Actually, it seems not only Jim is correct, but the Mouser catalog (#605) has
an *Application Note* at the top of its electrolytic cap products that state,
"A higher voltage capacitor may be used in a lower voltage application." It
does not elaborate or suggest there are limitations to this rule. (See Pg.'s
248, 249, 250, 251) 8~]