Products, Materials + Tools | Aug 27, 2007

New Ambient Light Sensing Photodiodes and Industry’s First High-Intensity Power SMD LEDs in CLCC6 Ceramic Package from Vishay

Vishay Intertechnology, Inc. (NYSE: VSH) is broadening its Optoelectronics portfolio with the introduction of the first ambient light sensing photodiodes qualified to the AEC-Q101 standard, a reliability test qualification procedure for discrete semiconductors published by the Automotive Electronics Council.

Additionally Vishay released the industry’s first series of high-intensity yellow, amber, and white power SMD LEDs in the CLCC6 ceramic package. The VLMx61 series offers a very low thermal resistance and high optical power for thermal-sensitive applications.

A key component for automotive body control and passenger safety applications, ambient light sensors allow electronic systems to detect and respond to light in a manner similar to the human eye, eliminating the need for manual adjustments and reducing power consumption. They are typically used to turn on, turn off, or adjust features as a convenience, to conserve battery power, or to provide added safety. Their automotive applications include rain, light, and tunnel sensors; brightness control for dashboard and navigation displays; and automatically turning on the headlights at dusk.

The new TEMD6010FX01 and TEMD5510FX01 use Vishay’s exclusive infrared filtering epoxy technology to match the spectral sensitivity of the human eye with minimal sensitivity to light beyond the visible range. They also provide the benefit of having a closely similar response to either incandescent or fluorescent light, for which the TEMD6010FX01 and TEMD5510FX01 deliver excellent response ratios of 1.3 and 1.4 respectively. For comparison, a standard silicon infrared photo diode has a response ratio of 10.

The TEMD6010FX01 and TEMD5510FX01 provide a linear response to illuminance from 0.1 lux to 100 klux with good lot-to-lot repeatability over the extended operating temperature range of −40 °C to +100 °C. Lot-to-lot repeatability may allow customers to eliminate calibration steps in their manufacturing process. Competing sensors are unable to match this linear response at temperature extremes, particularly above +85 °C.

The new sensors join Vishay’s existing portfolio of ambient light sensing photo transistors, which are also qualified to the AEC-Q101 standard. They are RoHS-compliant, free of halogens, and compatible with lead (Pb)-free soldering. Samples are available now with lead times of six weeks.

Vishay Releases Industry’s First High-Intensity Power SMD LEDs in CLCC6 Ceramic Package
Vishay Intertechnology, Inc. (NYSE: VSH) today released the industry’s first series of high-intensity yellow, amber, and white power SMD LEDs in the CLCC6 ceramic package. The VLMx61 series offers a very low thermal resistance and high optical power for thermal-sensitive applications.

The CLCC6 ceramic package of the VLMK61, VLMY61, and VLMW61 devices allows the additional current drive for a maximum light output while maintaining a high service life of up to 50,000 hours. Its high-efficiency heat dissipation makes the CLCC6 the ideal light source for clustered or matrix designs where the cumulative heat is a key consideration.

The new LEDs in the VLMx61 series are optimized for backlighting and illumination in automotive and transport, consumer, and general applications. Typical end products include handheld mobile devices; traffic lights; household appliances, such as washer, dryers, and refrigerators; and exterior automotive lighting, such as turn and brake lights.

All devices in the series offer a 60° half-intensity angle and are compatible with IR-reflow solder processes, in accordance with CECC 00802 and J-STD-020C. Preconditioned according to JEDEC Level 4a standards, the CLCC6 package is lead (Pb)-free and RoHS-compliant, and is Automotive-qualified AEC-Q101.

Samples and production quantities of the VLMx61 high-intensity power SMD LEDs are available now, with lead times of six weeks for larger orders.

About Vishay Intertechnology, Inc.:
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 .

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