I am having a difficult time identifying a high voltage, ceramic capacitor that I need to replace. I've tried at length to research this myself to no avail. I am hoping that someone out there can help me with this. Apart from the first line on the capacitor which I am reading as 220pF ±10%, I don't know how to interpret the rest. I cannot find a meaning for the symbol at the bottom that is a half circle with a bowtie in the middle of it and what does the tilde mean in this context? Cannot determine the voltage etc Thanks!