Design

MKP capacitors uses polypropylene film as the dielectric, which excels in low dielectric loss. PP film is metalized with a thin layer of zinc-aluminium alloy. Two layers of metalized film are wound into cylindrical windings. Flat sides of windings are contacted with zinc layer ensuring connection to terminals. Special structure of winding ensures feature called “self-healing”.

In the event of voltage breakdown, the metal layer is evaporated around the breakdown channel in very short time. Thanks to evaporation, no conductive channel is created between both metal layers and capacitor remains in full functionality.