Since the noise suppression/output filter portion is not directly connected to the mains UL rated capacitors are not required, although in some cases they are requested in which case Epcos recommends the X2 capacitors which were reviewed previously in this presentation. If a UL capacitor is not a mandated solution, Epcos offers standard MKT/polyester film capacitors. In the polyester type, two series are offered: the boxed version and the epoxy dipped version. In the MKT type the standard series B32592x is the boxed style with a capacitance range of 0.001µF to 220µF, a voltage range of 63 to 630 VDC and a rated temperature of 105ºC. EPCOS also offers an epoxy dipped MKT/polyester series that has a capacitance range of 0.01µF to 10µF with a voltage range of 63 to 630 VDC and a rated temperature of 105ºC.