New CMOS Photo-Schmitt-Trigger Photo Detector Offers Low Power Consumption, High Sensitivity, and Reliable Performance in Encoding and Sensing Applications

MALVERN, PENNSYLVANIA - July 02, 2002 - Vishay Intertechnology, Inc. (NYSE: VSH) today announced the release of a highly sensitive photo detector that combines the efficiency enabled by CMOS technology with the high performance of Vishay's Photo-Schmitt-Trigger standard.

With low power consumption, a low supply voltage, and a wide operating temperature range, the TEKS6400 photo detector with logic output provides designers with a reliable, higher-performing alternative to the TEKS5400, the current bipolar photo detector solution. The new TEKS6400 is designed to serve as a steering angle encoder for ESP in automotive systems and as an optical shaft encoder and transmissive or reflective sensor in end products such as printers, copiers and mobile phones.

The new CMOS photo detector features a low supply current of just 45 μA, and a supply voltage range of 2.5 V to 5.5 V, making it very attractive to use especially for battery-driven equipment. The TEKS6400 provides reliable operation over a broad temperature range of -40°C to +85°C and features a maximum junction temperature of 100°C. The device's maximum output current is 20 mA and maximum power dissipation is 50 mW.

Packaged in a miniature plastic package measuring 5 mm by 5 mm with a height profile of 2.65 mm, Vishay's new photo detector features a spherical side-view lens with a ±30° angle of half-sensitivity. The device's very high photosensitivity provides high EMI suppression and an integrated daylight filter that is spectrum-matched to IR emitters with a wavelength of 950 nm. The TEKS6400's threshold irradiance is 40 μW/cm².

The TTL- and CMOS-compatible photo detector features logic output - with open collector output and a low output signal, if IR light is "on" - and a digital interface to the logic IC. It is available in FSZ standard fan-fold packing. For complete optical sensor solutions, Vishay recommends its package-compatible TSKS5400 IR emitter.

Samples and production quantities of the TEKS6400 are available now, with lead times of six weeks for larger orders.

Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, and optoelectronics and selected ICs) and passive electronic components (resistors, capacitors, inductors, sensors, and transducers). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Its product innovations, successful acquisition strategy, and ability to provide "one-stop shop" service have made Vishay a global industry leader. Vishay can be found on the Internet at http://www.vishay.com.