Vishay – New VCNT2020 Reflective Optical Sensor Saves Space and Lowers Costs for Smart Home, Industrial and Office Applications
The Optoelectronics group of Vishay Intertechnology introduces a new reflective optical sensor for smart home, industrial, and office applications. Saving space compared to previous-generation solutions, the Vishay Semiconductors VCNT2020 combines an infrared emitter, silicon phototransistor detector, and daylight blocking filter in a miniature 2.5 mm by 2.0 mm by 0.8 mm surface-mount package.
• Features a compact construction where the emitting light source and detector are arranged in the same plane, with excellent internal crosstalk suppression
• Analog output signal is triggered by the detection of reflected infrared light from a nearby object
• Built-in daylight blocking filter greatly suppresses disturbing ambient light, thereby increasing the signal-to-noise ratio
• QFN package’s wettable flanks lower costs by eliminating the need for expensive x-ray inspections
• Typical output current of 1.6 mA is up to four times higher than similar devices available on the market
Product Benefits:
• Combines an infrared emitter, silicon phototransistor detector, and daylight blocking filter
• Compact QFN surface-mount package
• Measures only 2.5 mm by 2.0 mm by 0.8 mm
• Features wettable flanks to enable optical inspection of solder joints
• Detection range of 0.2 mm to 2.5 mm
• Emitter wavelength of 940 nm
• Typical current transfer ratio (CTR) of 8 % under test conditions
• Moisture Sensitivity Level (MSL) of 4 for reflow soldering according to J-STD-020
• RoHS-compliant, halogen-free, and Vishay Green
Market Applications:
• Optical switching in office equipment and home appliances
• Optical encoding in disc and tape drives for DVD and / or camera applications
• Paper presence detection in printers and copy machines
The Key Specifications:
• Detection range: 0.2 mm to 2.5 mm
• Emitter wavelength: 940 nm
• Typical output current: 1.6 mA
• Typical CTR: 8 %
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