I have a miller gas powered welder that quit welding. Removed the cover and it has a circuit board that has a bad diode on it. I got new diodes but there is one capacitor on the board that I cannot find new, the manual says it is ceramic 0.01 uf 500 volt dc, the capacitor has zu5, .01m, 500 v printed on it. can anyone tell me the correct capacitor to use?