Vishay Intertechnology Automotive Grade 4-Quadrant Silicon PIN Photodiode in Surface-Mount Package Delivers Peak Sensitivity of 950 nm

Vishay Intertechnology

MALVERN, PA — The Optoelectronics group of Vishay Intertechnology, Inc. (NYSE: VSH) this week introduced a new Automotive Grade 4-quadrant silicon PIN photodiode in a standard surface-mount package. Enabling a variety of sensor and control applications for the automotive, consumer, and industrial markets, the Vishay Semiconductors K857PH combines high photosensitivity with low 0.1% crosstalk and virtually no tolerance between its segments.

The AEC-Q101 qualified device released this week features four monolithic PIN diodes — each with an active area of 1.6 mm² — integrated into a single 4.72 mm by 4.72 mm by 0.8 mm top-view, surface-mount package. The sides of the K857PH’s package are opaque, which eliminates stray light irradiating the photodiodes, resulting in excellent signal-to-noise ratio. The device’s linear photoresponse enables small signal detection for automotive rain / light sensors, industrial automation systems, laser beam alignment, and virtual reality applications.

Built on homogenous technology, the photodiode offers a wide sensitivity range from 710 nm to 1100 nm, a peak wavelength of sensitivity of 950 nm, and reverse light current of 11 µA per segment at Ee = 1 mW/cm² and a 940 nm wavelength. The device provides a ± 60° angle of half sensitivity and operates over a temperature range of -40 °C to +110 °C. RoHS-compliant, halogen-free, and Vishay Green, the K857PH offers a floor life of 186 h in accordance with J-STD-020.

The Compay says samples and production quantities of the new 4-quadrant photodiode are available now, with lead times of 10 weeks.

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