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Vishay rolls film snubber capacitor for direct IGBT mounting

Posted: 10 Apr 2013 ?? ?Print Version ?Bookmark and Share

Keywords:Vishay? capacitor? IGBT? EMI?

A new high-performance metalized polypropylene film snubber capacitor has been recently unveiled by IC manufacturer Vishay Intertechnology.

The Vishay Roederstein MKP386M features a wide capacitance range from 047 to 10?F, high-temperature operation to 105C, and seven voltage ratings from 700 VDC to 2500 VDC and 420 VAC to 800 VAC. It is also configurable for direct mounting on insulated gate bipolar transistor (IGBT) modules.

With a high pulse strength to 2500V/microsecond, peak current capabilities to 1850A, and a long life of over 300,000 hours, the MKP386M is designed to reduce the voltage and current spikes caused by the switching of IGBTs, which are sources of electromagnetic interference (EMI).


Vishay's MKP386M.

Typical applications will include power converters, frequency converters, and motor drives in wind inverters, mid- and high-power solar inverters, and automotive drivetrains. This device is also available with a construction length of 58mm for high-power IGBT modules.

The snubber capacitor features low ESR down to 1.5 milliohms, capacitance tolerance down to 5per cent, low self-inductance of 0.7 nH per mm of lead spacing, and high RMS current up to 20A. Offered in a flame-retardant plastic case with an epoxy resin seal, the device is lead (Pb)-free, RoHS-compliant, and halogen-free.

Samples and production quantities of the MKP386M are available now, with lead times of 10 to 12 weeks.

Datasheet for the MKP386M is available here.

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