Safety standard recognized AC ceramic capacitor X1Y1 These ceramic capcitors are specially designed for AC applications and meet the safety requirements of various safety standards agencies. the capacitors are available for lines, by-passing antenna couping and switch surge suppressoring any other electronic aquipments. Operating temperature range: -25 to + 85C Rated voltage: CSA, UL 250V AC SEMKO SEV, FIMKO, China, Korea NEMKO, DEMKO, VDE 300V AC Rated voltage: 400V AC Test voltage: 4000V AC for 1min Capacitance range: 10pf to 10, 000pf, measured at 1kHz ± 10% , 1.0-5.0Vrms, 25C