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  • Application Note for QVE01040
    The QVE01040 phototransistor optical interrupter switch, consists of an infrared LED emitter that is optically coupled to a phototransistor detector through a 0.3 mm aperture on both sides. The emitter and detector are separated by a slot, 1.1mm wide and 3.7mm deep. The QVE01040 is configured