This new device, type designation Vishay K857PE, combines four monolithic diodes integrated into a single 4.72mm x 4.72mm x 0.8mm top-view, surface-mount package. The defined gap between the K857PE’s four radiant sensitive areas allows for reliable measurement during laser positioning. The opaque package sides eliminate stray light irradiating the photodiodes, resulting in high signal to noise ratio while the linear photo response enables small signal detection.
Another relevant feature is that the current from each of the device’s PIN diodes can be processed individually. This results in low 0.1 % electrical crosstalk and virtually no tolerance between segments, the vendor promises.
The K857PE retains an active area of 1.6 mm2 per quadrant and provides a floor life rating of 168h, in accordance with J-STD-020. It has a wide sensitivity range from 69 nm to 1050nm, a 8.5µA reverse light current and a ± 60° angle of half sensitivity. The device is AEC-Q101 qualified, RoHS-compliant, halogen-free and Vishay Green.
Application examples include automotive rain / light sensors as well as industrial automation systems, laser beam alignment and virtual reality.
More information can be found here