Thursday, April 25, 2024

4-Quadrant Silicon PIN Photodiode Qualified For Automotive Applications

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For small signal detection, the device delivers excellent signal-to-noise ratio and virtually no tolerance between segments

Qualified for automotive applications, here’s presenting a 4-quadrant silicon PIN photodiode developed by the Optoelectronics group of Vishay Intertechnology. Combining high photosensitivity with low 0.1 % crosstalk and virtually no tolerance between its segments, the K857PE enables a variety of sensor and control applications for the automotive, consumer and industrial markets.

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The AEC-Q101 qualified device features four monolithic PIN diodes — each with an active area of 1.6 mm2. The sides of the K857PE’s package are opaque, which eliminates stray light irradiating the photodiodes, resulting in an 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 epitaxial technology, the photodiode offers a wide sensitivity range from 690 nm to 1050 nm, with 8.5 µA reverse light current per segment at Ee = 1 mW/cm2 and an 850 nm wavelength. The device features a daylight blocking filter, ± 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 K857PE offers a floor life of 168 h as per J-STD-020.

Samples of the new 4-quadrant photodiode are available now in a standard surface-mount package of 4.72 mm x 4.72 mm x 0.8 mm. Production quantities will be available in Q4 2020.


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