FANUC A50L-0001-0295#PL transistor module. The FUJI 1MBI600LP-060 are single gate 600 amp 600 volt transistors that work in tandem with the NL version i.e. negative and positive fitted to oppose each other. Part of the L series transistors. Fitted in very large FANUC ALPHA modules with alternate p/n: A50L00010295/P, A50L00010295/PS.