OPB123A switches equivalent, optical switches.
Cathode Anode VCC Output Ground
Part Number
Sensor Photologic®
Aperture Emitter/Sensor
OPB120A OPB120B
Totem-Pole
0.04" / 0.04" 0.04" / 0.01"
OPB121A
0.04" / 0.04"
Open-Collector
OPB121B
0.04" / 0.01"
OPB122A Inverted Totem- 0.04" / 0.04".
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