VCNT2020 Vishay, SMT Reflective Optical Sensor, Phototransistor Output

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)