Vishay has broadened its optoelectronics portfolio with the release of a new 850 nm infrared (IR) emitter in a compact 3,85 by 3,85 by 2,24 mm top-view SMD package.
Based on SurfLight surface emitter chip technology and featuring an integrated lens, the VSMY98545 offers high drive current capability, high radiant intensity and high optical power while providing low thermal resistivity.
The device features a 42 mil by 42 mil emitter chip, which supports a low thermal resistance of 10 K/W junction-to-pin, and enables high drive currents up to 1 A and pulses up to 5 A. The emitter’s integrated lens supports a ±45° angle of half intensity, resulting in ultra-high radiant intensity of 350 mW/sr at 1 A and 1600 mW/sr at 5 A (pulses). This is more than double the radiant intensity of devices without lenses.
With its high drive current capabilities and optical power to 660 mW at 1 A, the VSMY98545 can replace multiple standard SMD devices, allowing designers to reduce the component count and improve performance in a wide variety of applications. The emitter is optimised for IR illumination in CCTV, gaming and road cash systems, in addition to long-range proximity applications such as presence detection for wakeup functions in office equipment.
The emitter offers fast switching speeds down to 15 ns, low forward voltages down to 1,8 V at 1 A, and operating temperatures from -40°C to +95°C.
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