The R46 series capacitors from Kemet are radial leaded, class X2 metalized polypropylene film EMI suppression capacitors. These capacitors are made of metalized polypropylene film encapsulated with self extinguishing resin in a box of material meeting the requirements of UL94 V-0 standard. It is used as electromagnetic interference (EMI) suppression in across the line applications requiring X2 safety classification. Intended for use in situations where capacitor failure would not result in exposure to electric shock and not for use in "series with mains" type applications.