Toshiba Electronic Devices & Storage Corporation has launched a press pack IEGT “ST1500GXH35A” with ratings of 4500 V/1500 A that employs newly developed trench-type IEGT chips for use in high-voltage converters such as DC power transmission systems and industrial motor controllers.

The newly developed IEGT chips reduce collector-emitter saturation-voltage and improve shutdown tolerance, short-circuit tolerance and high-temperature tolerance.

Therefore, compared with the existing product, the collector-emitter saturation voltage (VCE(sat)) of the new ST1500GXH35A has been reduced by approximately 26 % from 3.4 V to 2.5 V (typical). In addition, the new product features wide RBSOA by improving shutdown tolerance, and tests short-circuit tolerance at a measurement voltage of 3400 V.

Furthermore, the junction temperature rating (Tj) has been increased from 125 °C to 150 °C (maximum) by improving the high-temperature tolerance of the diode.

ST1500GXH35A helps to reduce the size and power consumption for high-voltage converters such as DC power transmissions, static VAR compensators, and industrial motor controllers.


  • DC power transmissions
  • Static VAR compensators
  • Industrial motor controllers


  • Low-collector-emitter saturation: VCE(sat)=2.6 V (typ.) (VGE=15 V, IC=1500 A, Tj=150 °C)
  • Expanded RBSOA (reinforced for 3400 V of test voltage), tested short-circuit tolerance
  • Maximum junction temperature rating: Tj (max)=150 °C

Original – Toshiba