Optical sensor improves performance, shrinks footprint

A reflective optical sensor, the VCNT2030 from Vishay provides a high current transfer ratio (CTR) and increased sensing distance in a tiny surface-mount package. The VCNT2030 packs a vertical-cavity surface-emitting laser (VCSEL) and silicon phototransistor in its 1.85×1.2×0.6-mm package, saving more than 40% of PCB space compared to previous-generation devices.

The sensor provides a detection range of 0.3 mm to 6 mm, an emitter wavelength of 940 nm, and a typical output current of 2.5 mA, which represents a typical CTR of 31% under test conditions. This CTR value is more than 100% higher than previous-generation devices and the closest competing sensor, according to the manufacturer. Vishay also says that VCNT2030’s sensing distance of 15 mm is three times that of the closest competing device.

With its compact footprint, the VCNT2030 offers space savings for optical switching in industrial infrastructure, home and building controls, computers, appliances, and consumer electronics. It can also be used to perform optical encoding for motor control in e-bikes, golf carts, tractors, and harvesters.

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Samples and production quantities of the VCNT2030 are available now, with lead times of 8 to 16 weeks.

VCNT2030 product page

Vishay Intertechnology

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