January 2015 – IXYS UK Westcode introduces two new higher current 2.8kV phase control thyristors

Published on: 23/01/2015

IXYS UK Westcode Ltd. introduces two new 2.8kV pressure contact phase control thyristors with increased power density. The new improved designs offer up to 80% increase in average current rating over the established designs, while retaining the overall package footprint.

The improvement in performance is achieved by maximising the die size and an improved package design. The new silicon die are alloyed to a metal disc and encapsulated in fully hermetic ceramic packages. Overall the new mechanical designs have reduced thermal resistance and the dies have enhanced electrical performance. The new thyristors have been optimised to better match the market requirement for devices in the voltage range of 2.6kV to 2.8kV.

IXYS UK Westcode new higher current 2.8kV phase control thyristors

The new 69mm die device has average current rating of 2830A to 3165A and the package has a 66mm electrode contact diameter, with an industry standard overall diameter of 101.5mm. These device options are within the mid-range current rating of IXYS UK’s product portfolio and have the highest ever power density offered in these footprints. The larger die sizes offer our customers the best performance and value for money and continue the IXYS strategy to supply products with more power and less package. Higher currents in smaller packages allow our customers to also optimise their designs to use less material and so save cost as well as reduce impact on the environment. These new devices have current ratings which allow them to replace devices in larger packages if used in conjunction with an appropriate cooling regime. A potential replacement to older designs in 73mm electrode diameter package with overall diameter 110.5mm, the 35mm thick package device has 10% more current rating than the larger package device and the 26mm thick package 24%; also the weight is reduced by more than 30%.

The 69mm die device is available in two industry standard package thicknesses, 26mm and 35mm,at two voltage grades. Designations are: 26mm thick package N3165HA260 (Vdrm/Vrrm 2600V),N3165HA280 (Vdrm/Vrrm 2800V) and 35mm thick package N2830HE260 (Vdrm/Vrrm 2600V),N2830HE280 (Vdrm/Vrrm 2800V).

Typical applications include soft starters, DC drives, and all controlled rectifier applications requiring devices in this power rating. IXYS UK Westcode is now part of Littelfuse.

For the N3165HA260 and N3165HA280 data sheet, please click here.
For the N2830HE260 and N2830HE280 data sheet, please click here.

For all pricing and email enquiries, please click here or call the office on 01444 243452.