Monday, November 06, 2006

 

Snubber capacitors address powerful demands

Micromark C and CD has expanded its range of snubber capacitors for IGBT protection, to address growing demand as ever higher currents are switched at ever increasing speeds.

Micromark C and CD has expanded its range of snubber capacitors for IGBT protection, to address growing demand as ever higher currents are switched at ever increasing speeds. A new series specifically designed to attenuate voltage spikes on GTO thyristors has also been introduced. Micromark C and CD is now offering Wima FKP snubber capacitors for IGBT protection in an extended range of capacitor values from 0.047 to 25uF and for voltages up to 4000V DC and 700V AC.

New optional tag configurations give additional flexibility for fitting the capacitors to IGBT modules.

The new additions share the key design features of existing Wima snubber capacitors, including a low inductance design, low loss polypropylene dielectric, high pulse load capability and high resistance to overvoltages.

The new Wima MKP series of capacitors from Micromark C and CD has been designed specifically to attenuate voltage spikes on GTO thyristors, and features exceptional DC pulse handling capability.

The capacitors are available with capacitance values from 1 to 100uF and support maximum voltages from 400C to 1400V DC, depending on value.

Target applications include convertor equipment in power generation and traction technology for train drives, hoists or crane drives.





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