Vishay Releases New Family of Surface-Mount, High-Power, High-Speed 940-nm Infrared Emitters

High Radiant Intensity in Gullwing, Reverse Gullwing, PLCC2, and 0805 Packages

Malvern, Pennsilvania, (PresseBox) - Vishay Intertechnology, Inc. (NYSE: VSH) today broadened its optoelectronics portfolio with the introduction of a family of 940-nm surface-mount infrared (IR) emitters featuring significantly higher radiant intensity over standard emitter technologies.

Available in 1.8-mm (T3/4) gullwing (VSMB2020X01), reverse gullwing (VSMB2000X01), PLCC2 (VSMB3940X01), and 0805 (VSMB1940X01) surface-mount packages, the new emitters use a unique die construction that produces a much tighter angular distribution of emitted light and power. All four devices are qualified to the automotive AEC-Q101 standard.

Compared to the next best equivalent device on the market, the radiant intensity of the PLCC2 VSMB3940X01 is 140% higher at 100 mA. Its typical forward voltage is a low 1.35 V versus 1.5 V. Furthermore its spectral bandwidth is nearly twice as tight, at 25 nm.

The VSMB1940X01 and VSMB2020X01 show similar performance improvements with up to 150% higher radiant intensity than the next best competing devices. Radiant intensity is 6 mW/sr for the VSMB1940X01 and 40 mW/sr for the VSMB2020X01.

Both the VSMB1940X01 and VSMB3940X01 have half angles of ±60°, while the VSMB2020X01 has a half angle of ±12°.

These new surface-mount emitters, along with the recently introduced 3-mm (T1) VSLB3940, have switching times of 15 ns, which allows them to be used in industrial light-barrier applications, as well as in infrared data and audio transmission applications. For in-car entertainment systems, for example, the emitters can be used to send DVD audio signals by infrared to IR-enabled headphones.

Samples and production quantities of these infrared emitters are available now, with lead times of four to six weeks for large orders.

Vishay Electronic GmbH

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

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