VCNT2020

VCNT2020 is a reflective optical sensor in a miniature SMD package with transistor output. It has a compact construction where the emitting light source and the detector are arranged in the same plane. The operating infrared wavelength is 940nm. The detector consists of a silicon phototransistor. The sensor analogue 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.

• Phototransistor detector type
• Operating range within > 20% relative collector current: 0.2mm to 2.5mm
• Kodak grey card, grey side (18%)/white side (90%) target material
• 0 to 2/0 to 7mm distance range for relative Iout>0.5mA w/ IF max (grey side (18%)/white side (90%))
• Typical CTR is 1.3%/12% (grey side (18%)/white side (90%))
• 0.5mm distance of peak sensitivity, daylight blocking filter integrated
• Forward voltage is 1.25V typ (IF = 20mA, Tamb = 25°C)
• Collector emitter breakdown voltage is 20V min (IC = 0.1mA, E = 0, Tamb = 25°C)
• Dimension (L x W x H) is 2.5 x 2 x 0.8mm
• Ambient temperature range from -25 to +85°C