FANUC A50L-0001-0348 transistor module. This transistor is a intelligent power module rated at 50amp running on 1200v circuits. FUJI manufacturerd the 6MBP50RA-120-01 under licence for FANUC and it was fitted in many different ALPHA and ALPHA i power modules, spindle amps and servo drives. DNC carry limited stocks of these for internal use. Occasionally we carry spares, contact us for more info.