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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