MALVERN, PA — Vishay Intertechnology Inc. (NYSE: VSH) has introduced two automotive-grade ambient light sensors designed to improve display performance and reliability in vehicles, expanding its optoelectronics portfolio as automakers incorporate more digital displays and sensor-driven features.
The company said the new PIN photodiode sensors, the VEMD4210FX02 and VEMD5525FX02, are designed for applications including automatic light control in center information displays, head-up displays, and rain light tunnel systems, as well as backlight dimming in industrial equipment.
The sensors are qualified under the AEC-Q102 automotive standard and are designed to measure visible light while minimizing interference from infrared radiation, a feature intended to improve accuracy in environments where lighting conditions can vary significantly.
Vishay said both devices feature spectral sensitivity closely matched to the response of the human eye, with a peak wavelength of 530 nanometers and no infrared “bump” that could distort measurements.
The company is targeting different use cases with the two devices. The VEMD4210FX02 is packaged in a compact 0805 footprint for space-constrained applications and offers a radiant sensitive area of 0.42 square millimeters. The VEMD5525FX02, designed for applications requiring greater sensitivity in low-light conditions, features a larger 7.5-square-millimeter sensitive area in a top-view QFN package.
Both sensors include wettable flanks that enable optical inspection of solder joints during manufacturing, a feature intended to support automotive reliability requirements.
The devices operate over an ambient temperature range of minus 40 degrees Celsius to 110 degrees Celsius and support lead-free reflow soldering. The sensors are also RoHS-compliant, halogen-free, and meet Vishay’s internal environmental standards.
The product launch comes as automakers increasingly rely on sensors to manage display brightness and visibility in digitally connected vehicles, creating demand for components that can maintain performance under harsh environmental conditions.
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