The capacitors, which employ a Metallised Polypropylene Dielectric (MKP), also feature excellent self-healing properties that allow weak dielectric areas to be burned out in the event of overvoltages.
The robust capacitors perform reliably under severe ambient conditions, easily passing the damp heat test. Here, they must operate for at least 1000 hours at a temperature of 85°C, a relative humidity of 85% and a voltage of 240VAC without a change in capacitance of 10% or more.
The X2 capacitors are suited for applications in harsh environments, such as the capacitive power supplies in outdoor energy meters, for example, and in across-the-line industrial applications.