Semikron semix igbt module Semix302gb126v1 Semikron semix igbt module Semix553gb128ds Semikron semix igbt module Semix303gd12e4c Semikron semix igbt module Semix353gb126v1 Semikron semix igbt module Semix553gb126v1 Semikron semix igbt module Semix703gb126v1 Semikron semix igbt module Semix302kd16s Semikron semix igbt module