IXYS Introduces a New Megapower 83mm Phase Control Thyristors with Rating of 2.2kV

The 2.2kV thyristor has an average current rating (Case temperature 55C) of 4340 amperes, with a junction to heat sink thermal resistance of 0.008 kelvins per watt. The new thyristor is constructed using an all diffused silicon slice fused to a metal disc and the die is encapsulated in a fully hermetic package. This construction enhances the performance and provides excellent transient thermal and surge current ratings.

“This new addition to the product group offers exceptional current rating for this voltage class and package size, thereby maximising the power to package ratio. Older ‘alloy free’ technology is very limited in its application at lower voltage classes. This new introduction takes advantage of thinner silicon and therefore reduced forward voltage drop to achieve the higher current rating and therefore higher power rating. Maximising performance through improved technology is core to IXYS’ strategy to produce the most power efficient devices,” commented Frank Wakeman, IXYS UK’s Marketing & Technical Support Manager.

The device is available in two industry standard capsule heights and two different voltage grades. Designations are: one inch thick package N4340TJ220 (2200 Volts), N4340TJ180 (1800 Volts); one and a half inch thick package N4340TE220 (2200 Volts), N4340TE180 (1800 Volts). Additional products with voltage ratings up to 6500 volts will be launched through 2013.