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2MBI650VXA-170E-50 - IGBT
http://www.fujielectric.com/products/semiconductor/ 2MBI650VXA-170E-50 IGBT Modules IGBT MODULE (V series) 1700V / 650A / 2 in one package Feature.2MBI650VXA-170E-54 - IGBT
http://www.fujielectric.com/products/semiconductor/ 2MBI650VXA-170E-54 IGBT MODULE (V series) 1700V / 650A / 2 in one package IGBT Modules Features.