A20B-9000-0500
Fanuc A20B-9000-0500 AC spindle sensor. This BZ type spindle motor sensor is a optical pick up 12 pin feedback device sold with or without cable. Normally for speed, position for the CNC controlling early generation AC spindle motors. This number is the common reference number this sensor is known by. Regardless you’ll always get the complete sensor with pcb.
DNC offer used and new sensors with warranty on surplus basis (assuming ex-stock). Due to this part being old and limited stock around the world. We normally keeps these for our own motor overhauls.