ARM Purification

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3 February 2014

Vishay releases 850nm IR emitter in top-view SMD package with integrated lens

Vishay Intertechnology Inc of Malvern, PA, USA has broadened its optoelectronics portfolio with the release of a 850nm infrared (IR) emitter in a compact 3.85mm by 3.85mm by 2.24mm 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 new device has a 42 mil by 42 mil emitter chip that supports a low thermal resistance of 10K/W junction-to-pin and enables high drive currents up to 1A and pulses up to 5A. The emitter’s integrated lens supports a ± 45° angle of half intensity, resulting in ultra-high radiant intensity of 350mW/sr at 1A and 1600mW/sr at 5A (pulses). This is more than double the radiant intensity of devices without lenses, it is reckoned.

With high drive current capabilities and optical power to 660mW at 1A, the VSMY98545 can replace multiple standard SMD devices, allowing designers to reduce the component count and improve performance in a wide variety of applications, it is claimed. The emitter is optimized for IR illumination in CCTV, gaming and road cash systems, in addition to long-range proximity applications such as presence detection for wake-up functions in office equipment.

The new device offers fast switching speeds down to 15ns, low forward voltages down to 1.8V at 1A, and operating temperatures from -40°C to +95°C. The VSMY98545 ensures a shelf-life of 168 hours and provides a moisture sensitivity level (MSL) of 3 in accordance with J-STD-020, says Vishay. Supporting lead (Pb)-free reflow soldering, the device is RoHS-compliant and halogen-free.

Samples and production quantities are available now, with lead times of 8-10 weeks for larger orders.

Tags: Vishay

Visit: www.vishay.com/docs/81223/vsmy98545.pdf

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