FAIRCHILD Using the QVE00033 Surface Mount Phototransistor Optical Interrupter Switch handbook
Datasheet
The QVE00033 phototransistor optical interrupter switch consists of an infrared LED emitter and a phototransistor detector optically coupled through a 0.4mm aperture on both sides. It is designed to indicate the presence or absence of a vane or shield in the emitter to detector path.
