Fanuc A50L-0001-0261 transistor module. These 150 amp transistors were manufactured by Fuji or Hitachi under licence for Fanuc.
Under the Fuji brand there were three series releases of the 0261 transistor; labelled as 0261/A being the earliest Fuji 2MBI150KB-060. Followed by the 0261/N which is a Fuji 2MBI150ND-060-01. With the last released being the 2MBI150SD-060-01 labelled as a 0261#S.
At DNC we have kept hold of thousands of old IGBT transistor modules which are fully functioning pulls due to replacing with uprated transistor modules. The transistors are isolated gate bipolar transistors in the MBI package rated at 150 amp / 600 volt. If you require any contact us.