The VCNT2025X01 from Vishay Semiconductors is a reflective optical 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 sensor’s operating infrared wavelength is 940 nm and the detector consists of a silicon phototransistor.
With a distance range of 0,3 to 4,5 mm, the sensor’s analog output signal (photo current) is triggered by detection of reflected infrared light from a nearby object. It has a built-in daylight blocking filter, which greatly suppresses disturbances from ambient light, thereby increasing the signal to noise ratio of the output signal.
The sensor’s small size of 2,5 x 2 x 0,6 mm makes it suitable for use in applications such as positioning, optical switching, optical encoding or object detection.
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