MXT474K305E20 is a 0.47 µF metallized polypropylene film capacitor designed for X2 class "across the line" and EMI/RFI suppression applications in harsh environments. The capacitor features a rated voltage of 305 Vac (630 Vdc equivalent), operating temperature range from -40°C to +110°C, and is constructed with self-healing properties and flame-retardant plastic case meeting UL 94V-0 requirements. It demonstrates high stability of capacitance with a tolerance of ±10%, a dissipation factor of 0.001 at 1 kHz at 20°C, and passes 1,000 hours of thermal humidity bias testing at 85°C and 85% RH. The E20 case size provides dimensions of 18 mm length, 16 mm height, and 10 mm thickness with a 15 mm pitch and 0.8 mm lead wire diameter. This capacitor is ideal for power supply filtering, EMI suppression, and applications requiring reliable performance under demanding environmental conditions including high temperature and humidity exposure.