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Optoelectronics/Displays??

Tiny photo detectors boast 100ns response time

Posted: 14 Oct 2009 ?? ?Print Version ?Bookmark and Share

Keywords:photo detector? photodiode? phototransistor? automotive?

Vishay photo detectors

Vishay Intertechnology Inc. has expanded its optoelectronics portfolio with the introduction of the new AEC-Q101-qualified miniature TEMD7x00X01 PIN photodiodes and TEMT7x00X01 phototransistors. Featuring an 0805 surface-mount package with an ultrasmall 1.25mm x 2mm footprint and low 0.85mm profile, the devices are available with spectral sensitivity to UV, visible and near-IR, or to near-IR radiation only.

The devices designed to free up board space or to fit onto already heavily populated boards. The TEMD7x00X01 and TEMT7x00X01 photo detectors are optimized for ambient light, tunnel, and rain sensors in automotive applications, as well as light curtains and barriers and encoding wheels in industrial applications.

The photodiodes combine a fast 100ns response time with a spectral sensitivity range of 350nm to 1120nm or 750nm to 1050nm, while the phototransistors offer a high light current of 450?A and spectral sensitivity range of 470nm to 1090nm or 750nm to 1010nm with a visible light filtering epoxy. The TEMD7x00X01 and TEMT7x00X01 devices feature a 1nA dark current, 60 of half sensitivity, and have a matching emitter in the recently introduced 940nm VSMB1940X01.

The devices offer a temperature range of - 40C to + 100C. The Pb-free photo detectors support lead-free processing in accordance with RoHS 2002/95/EC and WEEE 2002/96/EC, and are compatible with Pb-free reflow solder assembly.

For application notes on photo detectorsclick here.





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