DC-Link capacitors for harsh conditions

19 March 2008 Passive Components

Wima has developed a new range of metallised polypropylene capacitors for DC-Link applications. The DC-Link MKP4 range is available with capacitances between 5 and 75 μF for voltages of 450, 700, 900 and 1100 V d.c.

The capacitors are available in tolerances of ±5%, ±10% and ±20% and feature very low ESR, as required for DC-Link applications. The unpolarised contact configurations, eg in 4-lead version or with screw-on terminal lugs, guarantee safe operation even at high current loads. Thanks to their metallised polypropylene film element and plastic case with self-extinguishing epoxy resin sealing, they are entirely self-healing in cases of breakdown and have a life expectancy greater than 200 000 hours.

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