New Vishay IR Emitters Combine High Speed, High Power, and High Efficiency for Fast IrDA-Compliant Infrared Data Transfer

MALVERN, PENNSYLVANIA - February 11, 2000 - Two new high-speed, high-power infrared emitters built on an advanced double hetero technology were announced today by Vishay Intertechnology. Combining fast switching times with low power consumption, the new Vishay Telefunken devices are aimed at IrDA-compliant infrared data communication applications in cell phones, palmtops, computers, multimedia, and alarm and safety systems, where their high-efficiency operation will prolong battery life even while enabling a high rate of data transmission.

The devices released today offer designers a choice of two angles of half intensity, ±10° for the TSFF5200 or ±22° for the TSFF5400. Radiant power for the new emitters is 60% higher than previous generation emitters built on similar technologies, with typical ratings of 40 mW for both devices.

"Our advanced emitter technology combines the high speed of double hetero GaAlAs with the efficiency of standard GaAlAs and the low forward voltage of standard GaAs technology," said Manfred Wagner, Senior Marketing Manager at Vishay.

Forward voltage for the new devices is a remarkably low 1.45 V, while rise and fall times are just 10 ns with a maximum modulation bandwidth of 35 MHz. Both emitters are packaged in a 5 mm clear untinted plastic package for through-hole mounting. A pair of matching infrared detectors, the BPW97 and BPV22F, is also available from Vishay.

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.