I've got a device that uses a dropper cap for it's power. The original has gone t1ts up, 474k X1 330V. Can this be replaced with an X2 474k 330v ? The X1 seems either a stupid price or places like RS, CPC & Farnell want minimum orders of 5 or 10 plus delivery. What difference/problems would I get substitution a X2 cap for an X1 ?