en.Wedoany.com Reported - Vishay Intertechnology, Inc. (NYSE: VSH) has introduced two automotive-grade PIN photodiode ambient light sensors, the VEMD4210FX02 and VEMD5525FX02, expanding its optoelectronics portfolio to deliver higher optical accuracy and long-term reliability in harsh environments. Both sensors are AEC-Q102 qualified, with spectral sensitivity close to the human eye response, a peak wavelength of 530 nm, and no infrared (IR) bump.

Designed for automotive applications, these devices are suitable for automatic light control in central information displays (CIDs), head-up displays (HUDs), and rain-light-tunnel (RLT) systems, as well as backlight dimming for industrial equipment. By eliminating the IR bump in the spectral sensitivity curve, these sensors ensure precise measurement of visible light while avoiding interference from infrared light. The devices' angular characteristics guarantee stable spectral accuracy, enabling consistent and reliable light measurement performance regardless of the incident light angle.

For space-constrained applications, the VEMD4210FX02 comes in a compact 0805 package, with a typical reverse photocurrent of 0.014 μA, a spectral range of 470 nm to 610 nm, and an irradiance-sensitive area of 0.42 mm². For applications requiring higher sensitivity, especially under low-light conditions, the VEMD5525FX02 features a top-view QFN package with a large irradiance-sensitive area of 7.5 mm², a reverse photocurrent of 0.11 μA, and a spectral range of 480 nm to 590 nm. Both devices are equipped with side pads that facilitate easy solder wetting for optical solder joint inspection.

These sensors are RoHS-compliant, halogen-free, and meet Vishay's green standards, while also complying with J-STD-020 moisture sensitivity level 4, with a floor life of 72 hours. The devices support lead-free reflow soldering and operate over an ambient temperature range of -40 °C to +110 °C.

Device specification table:

The new ambient light sensors are now available for sampling and in mass production, with a lead time of 8 weeks.