6 July 2011

Avago claims brightest oval through-hole LEDs for electronic signage

Avago Technologies has announced three series of high-brightness oval through-hole LEDs for electronic signage applications. The new HLMP-Lx75, HLMP-Hx74/75 and HLMP-Ax74/75 LEDs deliver what is claimed to be industry-leading brightness for oval through-hole LEDs, reducing the current required to drive systems.

The red AlInGaP LEDs are available at 626nm dominant wavelength, and the green InGaN and blue InGaN LEDs are available at 530nm and 470nm, respectively. The maximum luminous intensities (in millicandelas) at 20mA are as follows:

• 4mm standard oval HLMP-Lx75: red – 2400mcd, green – 6050mcd, blue – 1660mcd;
  
• 5mm standard oval HLMP-Hx74/75: red – 2400mcd, green – 6050mcd, blue – 1380mcd;
  
• 5mm mini oval HLMP-Ax74/75: red – 4200mcd, green – 7260mcd, blue - 1990mcd.

The LEDs’ matched RGB radiation pattern is designed to maintain consistent light and uniform color mixing from all viewing angles. This combination enables sharper viewing quality with lower power consumption for full-color signage (such as billboards, stadium video screens, building video walls) as well as for simpler roadway and commercial signage.

The HLMP-Lx75 and HLMP-Hx74/75 LED series offer a typical viewing angle of 40º by 100º, while the HLMP-Ax74/75 LEDs offer 30º by 70º. The wide typical viewing angles and the high luminous intensity deliver optimal performance for outdoor applications, the firm claims. The package epoxy of the LEDs contains UV inhibitor (tinted and diffused) to reduce the effects of long-term exposure to direct sunlight, and the lead-free and RoHS 6 compliant package also offer superior resistance to moisture, providing enhanced durability for outdoor environments. The operating temperature ranges are –40°C to +100° C for red LEDs and –40°C to +85°C for green and blue LEDs.

Avago says that it also provides design flexibility, with the option of shipping tight color and intensity bins, up to 4nm per bin for the new blue and green LEDs.

“These efficient and durable new LEDs provide superior viewing performance, along with cost savings realized from lower power consumption and reduced maintenance,” says Francis Khor, director of marketing for the optoelectronics products. 

The green and blue HLMP-Lx75, HLMP-Hx74/75 and HLMP-Ax74/75 LEDs are priced at $0.21 each in minimum quantities of 2000 pieces, and the red LEDs are priced at $0.12 each in minimum quantities of 2000 pieces.

See related items:

LEDs in signage/professional displays rises 17% to $1.52bn in 2010

Tags: Avago Red LEDs Green LEDs Blue LEDs AlInGaP LEDs InGaN LEDs

Visit: www.avagotech.com