Intermediate Circuit Capacitors

WIMA DC-Link capacitors are especially designed for applications in high power converter technology where due to increasing electrical requirements they are more and more substituting electrolytic capacitors. Manufactured with a low loss polypropylene dielectric they show a higher current carrying capability as well as lower dissipation/self-heating at high frequencies compared to electrolytic capacitors. Further outstanding features are, e.g.:

• Very high capacitance/volume ratio
• High voltage rating per component
• Very low dissipation factor (ESR)
• Very high insulation resistance
• Excellent self-healing properties
• Long life expectancy
• Non-polar construction
• Particularly reliable contact configuration
• High shock and vibration resistance
• Outstanding mechanical stability

WIMA DC-LINK MKP 4 capacitors with rectangular case are available with capacitance values from 5 µF through 75 µF and with rated voltages from 450 VDC through 1100 VDC. For mounting purposes 4-lead versions or screwable plate connections are possible.

WIMA DC-LINK MKP C capacitors in cylindrical case are available with capacitances from 30 µF through 250 µF and with rated voltages of 400 VDC, 600 VDC and 850 VDC. For mounting purposes axial M6 or M8 threaded terminations are available.

Based on their internal construction and their non-polarized connection configuration WIMA DC-LINK HC capacitors can for example be connected as one 4500 µF/400 VDC, as two 2250 µF/400 VDC or alternatively as one 1125 µF/800 VDC component. Depending on the case size and wiring version values between 85 µF/1600 VDC and 4500 µF/400 VDC are available. Customized solutions can be realized on demand.