The electronic part described is a 20uF 10% 305 VAC 30x45x57mm Film Capacitor manufactured by WIMA with the part number MKPFAW52009ED4KSSD. It is typically used in power electronics applications such as switching power supplies, inverters, and more. It features a polypropylene film dielectric, metalized construction, and is RoHS compliant. It also has axial lead terminals, an operating temperature range of -25°C - +85°C, a rated voltage of 305 VAC, a tolerance rating of ±10%, and a case size of 30x45x57mm.