Product category: Light Emitting Diodes (LEDs)
News Release from: Avago Technologies | Subject: HSDL-42xx series
Edited by the Electronicstalk Editorial Team on 20 January 2006
High-power IR emitters improve
transmission range
A new family of high-power infra-red LED emitters with 870 and 940nm wavelengths are optimised for high radiant intensity, speed and low forward voltage.
Avago Technologies today announced a family of high-power infra-red (IR) LED emitters with 870 and 940nm wavelengths in 5mm (T-1.75) through-hole packages These new IR emitters are fabricated using the company's high-power aluminium gallium arsenide (AlGaAs) LED technology, which has been optimised for high radiant intensity, speed and low forward voltage
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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The 5mm packages are built with iron lead frames that dissipate power efficiently over a wide range of currents.
Avago's HSDL-42xx series IR emitters are specifically optimised to meet today's requirements for increased infra-red transceiver link distances and higher datarates in consumer, industrial and communications applications.
Such applications range from access controls and portable instruments, to IR optical mice and smoke detectors, to IR LAN transceivers and audio links.
The 870nm wavelength is commonly used for IR communications, and the 940nm is typically used for remote-control applications.
"Manufacturers today need high-power, low forward voltage and high-speed infra-red emitters as infra-red transceiver link distance requirements and datarates continue to increase across all applications", said Chee-Kien Lim, Infrared Worldwide Marketing Manager for Avago Technologies' Optical Communication Solutions Division.
"Our new family of infra-red emitters meets and exceeds the needs of our customers".
Avago's HSDL-4250 and HSDL-4251 operate at 870nm peak wavelength with low forward voltage of 1.4V at 20mA and optical rise and fall times of 40ns.
The HSDL-4250 features a typical on-axis intensity of 180mW/sr with a 15-degree viewing angle.
The HSDL-4251 features 100mW/sr intensity and a 30-degree viewing angle.
Intensities are measured at 100mA forward current.
With an 875nm peak wavelength, the Avago HSDL-4260 provides typical 200mW/sr on-axis intensity at 100mA, a 15-degree viewing angle, and 15ns optical rise and fall time.
Forward voltage is 1.4V at 20mA.
Avago's HSDL-4270 and HSDL-4271 operate at 940nm peak wavelength with a forward voltage of 1.3V at 20mA, and a 1.3us optical rise and fall time.
The HSDL-4270 provides 100mW/sr typical on-axis intensity and a 15-degree viewing angle.
The HSDL-4271 provides 50mW/sr intensity and a 30-degree viewing angle.
The HSDL-42xx series IR emitters are available now through Avago Technologies' direct sales channel and worldwide distribution partners. Request a free brochure from Avago Technologies ...
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