FANUC A50L-0001-0209 Transistor module. This specially packaged power transistor is known by Fuji Electric 6DI150A-060 and belongs to the DI series of modules. This transistor is in an M type package solely for FANUC. Fitting on various FANUC AC spindle drives from 6/8kW through to 30kW versions. Rated at 150amp 600 volt. They were natively coupled with very late FANUC 10/11 controls, normally 0-A, 0-B, 0-C, 0-D, 15, 16, 18 series systems to name a few.