OPB616.

OPTEK Technology
Category: Optical Sensors
SLOTTED SWITCH SCHMITT TRIGGER; Sensor Output:Open Collector; Forward Current If:50mA; Forward Voltage:1.6V; Reverse Voltage Vr:3V; Aperture Width:1.52mm; Gap Width:3.81mm; Sensor Mounting:Through Hole; Input Current:10mA
* $2.42 - * $2.62