Products, Materials & Tools | Mar 24, 2014

Seoul Semiconductor's New Acrich MJT 2525 Series Offers Unmatched Lumen Density

Seoul Semiconductor, a global leader in LED technology, on March 24th has announced the release of a new generation of LEDs, Acrich MJT 2525 series, with industry leading performance and lumen density in the mid-power class. The new mid-power product family of the 2525 series offers a compact symmetrical package with dimensions of 2.5mm x 2.5mm and wide beam angles making these LEDs ideal for applications that require uniform illumination. At the heart of this new package is the state-of-the-art chip technology from Seoul Semiconductor and also optimized light extraction from the package resulting in high luminous efficacies.

MJT 2525 Data:
CCT [K]: 2600-3700
CRI [Ra]: 80
Size [mm]: 2.5x2.5    
Forward Current [mA]: Typical = 40; Max. = 60    
Luminous Flux [lm]: @ 40mA = 95; @ 60mA = 129    
Viewing Angle [deg]: 130°

The Acrich MJT 2525 series is a compact high voltage mid-power package with a typical forward voltage of 22V. At 3000 Kelvin (K) and a CRI of 80 it achieves a brightness of 95 lumens (lm) and an efficacy of 105 lumens per watt (lm/W) at an operating current of 40 milliamps (mA) at 25°C. With a lumen density of 15lm/mm2 this midpower package is best in class and has a lumen density five times that of any other midpower package making it ideal for space constrained lighting applications.  The wide viewing angle on these LEDs also helps implement the omni-directionality in replacement lamp designs.

The high voltage Acrich MJT 2525 series incorporates the Acrich- Multi-junction Technology with multiple junctions on a single monolithic chip eliminating the usage of multiple wire bonds between several die's to create the high voltage architecture. This construction vastly improves the reliability of the LED package since it reduces the potential number of failure modes associated with wire bonds within the LED package. This high voltage architecture also enables the use of simpler, more cost-efficient drivers, compared to conventional LEDs. The improved efficiency of the driver electronics also results in less heat generated and fewer electronic components used in the driver design allowing more space for thermal management within the luminare.  

Seoul Semiconductor Executive Vice President of Lighting sales division, Jay Kim has stated that "The new 2525 Series has unparalleled lumen density in the mid-power class of LEDs not only reducing the total system costs for designers but also enabling new possibilities in lighting design. To add to that the MJT 2525 series has higher cost efficiency than most mid-power packages and has already been adopted worldwide in a number of designs by key customers".

About Seoul Semiconductor:
Seoul Semiconductor (SeoulSemicon.com) manufactures and packages a wide selection of light emitting diodes (LEDs) for the automotive, general illumination/lighting, appliance, signage, and back lighting markets. The company is the world’s fourth largest LED supplier, holding more than 11,000 patents globally, while offering a wide range of LED technology and production capacity in areas such as “nPola”, deep UV LEDs, "Acrich", the world’s first semiconductor light source that operates directly from both AC and DC power supplies, and "Acrich MJT - Multi-Junction Technology," a proprietary family of high-voltage LEDs. The company’s broad product portfolio includes a wide array of package and device choices such as AC-driven LEDs, high-brightness LEDs, mid-power LEDs, side-view LEDs, through-hole type LED lamps, custom displays, and sensors.

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