New Horizontal-Oriented Transmissive Optical Sensor Provides High-Accuracy Sensing in Compact End Products

New Horizontal-Oriented Transmissive Optical Sensor

MALVERN, PENNSYLVANIA-April 3, 2001-A new transmissive optical sensor featuring a unique horizontal slot construction was announced today by Vishay Intertechnology (NYSE: VSH). With a 0.5-mm aperture, the Vishay Telefunken TCST5250 is optimized for high-accuracy sensing of horizontal-moving objects in shaft encoders, VCRs, data storage equipment, the code wheels of DC motors, and other space-limited products.

Housed in a plastic polycarbonate package with a height of only 9 mm, the TCST5250 provides a 2.7-mm gap and a lead pitch of 2.54 mm. As a transmissive sensor, it is further optimized for use in compact end product designs through the direct face-to-face positioning of an infrared emitter and phototransistor detector on the same optical axis.

The TCST5250 features an operating wavelength of 950 nm, with a 0.4-mm resolution and a typical current transfer ratio of 7.5%. The device is designed with a positioning pin that ensures high-accuracy assembly. Additionally, the TCST5250 provides protection against ambient light with an integrated daylight filter that significantly reduces light interference.

With a highly accurate 0.5-mm aperture, a fast switching speed, and our new horizontal slot construction, the TCST5250 transmissive optical sensor keeps pace with today's market demand for continually smaller, high-performance equipment and is ideal for designers who need high-precision switching in even the most space-constricted products. Samples and production quantities of the TCST5250 transmissive optical sensor are available now. The lead time for larger orders is six to eight weeks.      

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.