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Optoelectronics/Displays??

IR emitter in leaded package offers wide viewing angle

Posted: 06 May 2008 ?? ?Print Version ?Bookmark and Share

Keywords:optoelectronics? IR emitter? free-air data transmission?

TSFF5510

Vishay Intertechnology has broadened its optoelectronics portfolio with the introduction of its first wide-viewing-angle IR emitter in a leaded package. With its uniquely designed lens, the TSFF5510 has a viewing angle of 38, which enables significantly better performance than standard 5mm emitters.

The combination of a wide viewing angle, high power output up to 1A, and high speed makes the TSFF5510 infrared emitter ideal for IR audio and video data transmission in free-air data transmission applications with high modulation frequencies or high data transmission rates, such as IR toll collection and wireless audio transmission systems. For example, many theatres and museums will use TSFF5510-enabled systems to comply with the Americans with Disabilities Act in providing infrared audio transmitters.

With the industry's lowest forward voltage of 1.45V at 100mA and 2.15V at 1A, the TSFF5510 emitter provides the basis for very uniform operation performance, especially in a series circuit layout. The device features switching times of 15ns, meeting the requirements for high-modulation operation of 23MHz, and supporting data transmission rates of up to 16Mbit/s.

Suitable for high-pulse-current operation, the TSFF5510 offers a peak wavelength of 870nm, 55mW optical power at 100mA, and radiant intensity of 32mW/sr at 100mA. The device offers a compact leaded package with a lens radius of 2.35mm, a lens height of 3.8mm, a lens width of 4.8mm, epoxy bottom plane diameter of 5.9mm, and a lead distance of 2.54mm. The emitter is a Pb-free component in accordance with WEEE 2002/96/EC and RoHS 2002/95/EC

Samples and production quantities of the TSFF5510 are available with lead times of four weeks for large orders.





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