RFI Capacitors | WIMA

MKP-X2 Data Sheet

MKP-X2 R Data Sheet

MKP-Y2 Data Sheet

Radio interference suppression capacitors must not only satisfy EMC requirements in suppressing outgoing interference from an application but they must also protect the application from incoming power surges. Hence careful selection of these components is essential.

The special feature of WIMA Polypropylene RFI capacitors are the high capacitance values at smaller case sizes compared to metallized paper capacitors, being available up to 10 µF with AC voltages of 275 VAC, 300 VAC and 400 VAC for class X2 and Y2 . Based on the dielectric used they are highly cost-effective.

WIMA metallized paper are neither actively nor passively flammable. The components are resin impregnated under vacuum and encapsulated with self-extinguishing cast resin. Thanks to the good oxidation behaviour of the paper dielectric, they have outstanding self-healing properties even with high energy pulses. The capacitors are specified for temperatures up to 110° C and are available for class X1, X2 and Y2 applications.

Class X capacitors are connected between phase and neutral or phase and phase conductors. Class Y capacitors have an increased degree of electrical and mechanical safety and are connected, for example, between phase conductors and earthed casing, and thus by-pass operating insulation.

The specified rated AC voltage takes into account a rise of the mains voltage of up to 10% above the nominal value, in accordance with IEC 60384-14.

WIMA Complete Product Line

SMD Capacitors Size codes 1812-6054 and capacitance values from 0.01 µF through 6.8 µF with PET and PPS dielectric.
Capacitors in PCM 2.5 mm WIMA subminiature capacitors are available in metallized or film/foil version with capacitances up to 1.0 µF.
Capacitors in PCM 5 mm With capacitances up to 10 µF and voltage ranges up to 1000 VDC the WIMA capacitors in PCM 5 mm covers a wide field of applications.
Film/Foil Capacitors in PCM 7.5 - 15 mm Polyester and Polypropylene capacitors for pulse applications with capacitances up to 0.22 µF and voltage ranges up to 1000 VDC.
Metallized Capacitors in PCM 7.5 - 37.5 mm Self-healing Polyester and Polypropylene capacitors up to 220 µF with voltage ranges up to 2000 VDC.
Pulse Capacitors Designed for extremely high pulse loads this reliable, self-healing Polypropylene capacitors are available with voltage ranges up to 6000 VDC.
RFI Capacitors Interference suppression capacitors with Polypropylene or Metallized Paper dielectric classes X2, X1 or Y2.
Snubber Capacitors Developed for high-power converter technology, WIMA Polypropylene snubber capacitors are available in manifold connecting configurations.
GTO Capacitors WIMA Polypropylene GTO capacitors are especially designed to attenuate voltage spikes on GTO-Thyristors and IGBT.
DC-Link Capacitors Intermediate circuit capacitors in manifold connecting configurations with capacitances up to 4500 µF and voltage ranges up to 1600 VDC for applications in high-power converter technology.
SuperCapacitors Double-layer storage capacitors with highest capacitance values in the Farad range suitable for support, protection or replacement of batteries in traction systems.