The VCNT2020 is a reflective sensor in a miniature SMD package. It has a compact construction where the emitting light source and the detector are arranged in the same plane. The operating infrared wavelength is 940 nm. The detector consists of a silicon phototransistor. The sensor analog output signal (photo current) is triggered by detection of reflected infrared light from a close by object. The sensor has a built in daylight blocking filter, which greatly suppresses disturbing ambient light and therefore increases signal to noise ratio.
Package type: SMD Detector type: phototransistor Dimensions (L x W x H in mm): 2.5 x 2 x 0.8 Operating range within > 20 % relative collector current: 0.2 mm to 2.5 mm Emitter wavelength: 940 nm Moisture sensitivity level (MSL): 4 APPLICATIONS: Position sensor Optical switch Optical encoder (e.g. disc and tape drives for DVD and/or camera applications) Object detection (e.g. paper presence in printer and copy machines)
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