IR Emitting Diodes For IR Switching Applications


Gesture applications, wake-up functions, optical switches and photo-interrupters and IR emitters for 3D gaming units and IR touch panels can all be realised with the new IR emitting diodes from Vishay Intertechnology. However, this can be realised when the devices combines with Vishay’s VCNL sensor family to attain optimised solution.

According to the product specification, “As part of the SurfLightTM portfolio, the VSMY12940 is an infrared, 940 nm, while the VSMY12850 is an infrared, 850 nm,top-looking emitting diode based on GaAlAs surface emitter chip technology with extreme high radiant intensities, high optical power and high-speed, molded in clear, untinted PCB based package (with inner lens) for surface mounting (SMD).”

In addition to this the VSMY12850 and VSMY12940 offer extremely high radiant intensity to 16 mW/sr at a low 70 mA driving current, fast switching times of 10ns, and forward voltage of 1.6V. Suitable for high pulse current operation to 1 A at 100 µs, the devices feature a ± 40° angle of half intensity and operate over a temperature range of -40 °C to +85 °C.


The IR emitters provide a moisture sensitivity level (MSL) of three in accordance with J-STD-020 for a shelf life of 168 hours. The devices are RoHS-compliant, halogen-free and Vishay Green as stated in the release.

Real Time Temperature Detection In Industrial Goods


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