Home News Vishay - New High-Performance Reflective Light Sensors Based on VCSELs

Vishay - New High-Performance Reflective Light Sensors Based on VCSELs

2023-08-10

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A few days ago, Vishay Technology Vishay Intertechnology, Inc. (NYSE stock code: VSH) announced the launch of a new reflective light sensor for industrial, computer, consumer and mobile applications --- VCNT2030. Compared to previous-generation solutions, Vishay Semiconductors' VCNT2030 is more space-saving, while having higher current transfer ratio (CTR), longer sensing distance and lower power consumption, resulting in improved performance. The product is configured with a vertical-cavity surface-emitting laser (VCSEL) and a silicon phototransistor in a tiny 1.85 mm x 1.2 mm x 0.6 mm surface-mount package.



The recently released device adopts a compact structure, the emission source and the detector are in the same plane. The VCSEL offers excellent internal crosstalk rejection due to its narrow ±17° emission angle, which also improves proximity performance behind the cover glass. The analog output signal of the VCNT2030 phototransistor depends on the amount of light emitted by the VCSEL and reflected from objects in the sensor's field of view. The sensing distance of the device is 15 mm, which is three times that of the closest competitor on the market.

Due to its small size, the VCNT2030 saves more than 40% PCB space compared to previous generation devices, enabling the sensor to be used in industrial infrastructure, home and building control, laptop and desktop computers, home appliances, consumer electronics and metering applications space-saving optical switching solutions in the field; optical encoding for motor control in e-bikes, golf carts, tractors, and harvesters; and paper detection in printers and scanners. In these applications, the low 8mA drive current of the device's VCSEL is sufficient to provide the same performance as a solution using a 20mA infrared emitter, resulting in significantly lower power consumption.

The sensor has a detection range of 0.3 mm to 6 mm, an emission wavelength of 940 nm and a typical output current of 2.5 mA, which means a typical CTR of 31 % under test conditions. This value is more than 100 % higher than the previous generation solution and the closest competitor sensor. The device has a reflow moisture sensitivity level (MSL) of 3 per J-STD-020. It is RoHS compliant, halogen-free, and meets Vishay Green Standards.

Samples and production quantities of the VCNT2030 are available now, with lead times of 16 weeks..


Introduction to VISHAY


Vishay is one of the world's largest manufacturers of a broad portfolio of discrete semiconductors and passive electronic components critical to innovative designs in the automotive, industrial, computing, consumer, communications, defense, aerospace and medical markets. Serving customers around the world, Vishay carries the gene of technology——The DNA of tech.?. Vishay Intertechnology, Inc. is a Fortune 1,000 company listed on the New York Stock Exchange (VSH).


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