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Date: 23rd May 2011

Westcode's two new packages for thyristor packs more power

Westcode Semiconductors Limited has launched the addition of two new package options to their 'Wespack' thyristor range. The new devices offer the same maximised power ratings for weight and volume, but in an industry standard 1" (26mm) thick package.

These new 1" (26mm) thick package options augment Westcode's extensive range of 0.57"(14.5mm) thick 'Wespack' devices. The new product matrix includes four-voltage classes from600V to 2.2kV and average current rating from 1449A to 3597A.

The new packages maximize silicon content and therefore controllable power, while fitting within the envelope of industry standard outlines. However, the increased package thickness gives an enhanced minimum creep distance of 0.47" (12mm) anode to gate, as well as an increased flash distance when mounted between flat coolers.

Frank Wakeman, Westcode's Marketing & Technical Support Manager commented, "Whereas the 0.57" (14.5mm) 'Wespack' package offers the current rating for volume and lowest material content, the new 26mm devices are ideal in environments where an increased creep distance is a significant requirement. The new packages have the same die, but the thicker package increases the thermal resistance to give a slightly lower average current rating; however, these remain significantly those of alternative packaging technologies within the same envelope."

Applications for these devices include; soft-starters, industrial drives, wind power converters, electrochemical power supplies and welding, plus all rectifier and power conversion in the multi100kW range.

For data sheets go to the Westcode website at www.westcode.com


 
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