Fanuc A50L-0001-0273 Transistor Module.
Fanuc 20 amp 600 volt transistor module A50L-0001-0273 manufactured under license by Fuji in a special package for Fanuc solely. These transistors are fitted in a variety of Fanuc AC Spindle Servo unit power sections, namely 6044 series interfaced with spindle amps 6062, 6063 respectively.