VCNT2025X01 Reflective Sensor

Vishay's VCNT2025X01 is a reflective sensor in a miniature SMD package with dimensions of 2.5 mm x 2 mm x 0.6 mm (L x W x H). The emitting light source and the detector are arranged in the same plane but the crosstalk from the IRED towards the detector is almost zero. The operating infrared wavelength is 940 nm. The detector consists of a silicon phototransistor. The sensor’s analog output signal (photocurrent) is triggered by the detection of reflected infrared light from a near by object. The sensor has a built-in daylight-blocking filter which greatly suppresses disturbing ambient light and therefore increases the signal-to-noise ratio. Due to its high sensitivity, the VCNT2025X01 can be used for detection at distances of up to 5 mm. At this distance, a highly reflective object will still generate a current at the detector of about 0.5 mA.