The W2830 and W3090 are high current pressure contact rectifier diodes featuring voltage rating of 6 kV and surge current ratings at 36 kA. The diodes are encapsulated in fully hermetic ceramic packages with copper electrodes.
The new 69 mm die devices are available in industry standard 26 mm and 35 mm thick packages. The 26 mm parts have an average current rating of 3090 A and the 35 mm parts an average current rating of 2830 A at a heat sink temperature of 55⁰C. Both parts offer a surge current rating of 36 kA. The fully hermetic package has a 66 mm electrode contact diameter with an industry standard overall diameter of 100 mm. The construction uses a new improved process when compared to earlier IXYS high current rectifier diode designs with the silicon die directly bonded to a metallic disc. This improved structure offers both better transient thermal conditions and overall greater robustness, when compared to designs with free-floating silicon. These new devices offer the possibility for reducing series parallel combinations in very high megawatt rectifier applications thereby reducing component count and simplifying the mechanical construction.
“These new devices offer the highest possible current density in this package size and are suited to applications in the high megawatts. Their introduction expands the range of parts offered by IXYS UK Westcode in this voltage class,” commented Frank Wakemann, IXYS UKs Marketing and Technical Support Manager.
The new devices are available in industry standard 26 mm and 35 mm thick packages and three voltage grades. Designations are:
- 26 mm thick package
- W3090HA520 (V rrm 5200 V)
- W3090HA560 (V rrm 5600 V)
- W3090HA600 (V rrm 6000 V) - 35 mm thick package
- W2830HE520 (V rrm 5200 V)
- W2830HE560 (V rrm 5600 V)
- W2830HE6000 (Vrrm 6000V)
The 6 kV voltage rating is ideal where 3 kV DC output is required. Typical applications include traction rectifiers and substations, front end rectification for medium voltage drivers and all rectifier applications requiring devices in this power rating.
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Author: EEWeb
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