Found 3 alternatives for VUB72-16NOXT by IXYS. Diodes Bridge Rectifiers — V1A-PAK.
BRIDGE RECT 3P 2.2KV 60A V1A-PAK
BRIDGE RECT 3P 1.6KV 75A V1A-PAK
BRIDGE RECT 3P 600V 40A V1A-PAK