High power IR emitters provide 30% higher radiant intensity in a smaller footprint

16-02-2022 | Vishay | Lighting Technologies

Vishay Intertechnology, Inc. has expanded its optoelectronics portfolio with six new 850nm and 940nm high power IR emitters that provide best in class radiant intensity in 3.4mm x 3.4mm surface-mount packages. Built on Vishay's SurfLight surface emitter chip technology, the devices are created for high drive currents up to 1.5ADC and 5A pulsed in industrial and consumer applications.


Providing a double-stack chip, the IR emitters deliver high radiant intensity up to 6,000mW/sr at a 5A pulse current. 30% higher than previous-generation solutions and 10% higher than the nearest competing device. These values allow greater illumination distance while reducing the number of components needed to lower costs and save space. For further space savings, the emitters use a 20% smaller footprint than competing devices and past-generation solutions.


The IR emitters are excellent for eye tracking in gaming and night vision for CCTV, machine vision, number plate recognition, toll systems, and general IR illumination. For these applications, the devices merge their high radiant intensity with three angles of half intensity — ±28 degrees, ±40 degrees, and ± 6 degrees — an increased ambient temperature range from -40C to +125C, and low thermal resistance from 6K/W to 9K/W.


RoHS-compliant, halogen-free, and Vishay Green, the emitters support lead (Pb)-free reflow soldering. The devices provide high ESD immunity up to 5kV in accordance with ANSI / ESDA / JEDEC JS-001, a floor life of 168 hours, and a moisture sensitivity level of 3 in accordance with J-STD-020E.

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