Wima MKS4 Series Metallised Polyester Capacitors 10% – Wima MKS4U032207E00KS, A 2000V 220nF industry standard metallised polyester (PET) capacitor. The capacitor has a high volume/capacitance ratio and is suitable for general purpose DC applications such as by-pass, blocking, coupling and decoupling, timing. Wima MKS4U032207E00KS MKS4 0.22uF ±10% 2000V Radial Polyester Film Capacitor