Metal-core-based cool white LED power module

Jon Lawson

Vishay Intertechnology has introduced a new metal-core-based cool white LED power module featuring 12 high-brightness LEDs with high luminous flux of 4000lm each at 1A. To simplify designs and manufacturing processes, the Vishay Semiconductors VLSL12A03-3Q3T-50A can be combined with off-the-shelf LEDiL quadruple lenses, while its integrated small thermal sensor (NTCS0603E347JHT) and fourfold plug-in connector (87438-0443) eliminate the need for additional soldering.

Optimised for illumination in internal building lighting, street lighting, tunnel lights, industrial lighting, and general lighting applications, the 12 LM80-certified LEDs of the VLSL12A03-3Q3T-50A are serially connected on an aluminium metal-core, single-side PCB measuring 161mm by 50mm by 2mm and featuring a shiny white surface. To allow for a variety of emission patterns, this layout is compatible with LEDiL 2x2 STRADA and High Bay quadruple lenses. 

Based on InGaN (indium gallium nitride) technology, the VLSL12A03-3Q3T-50A provides a maximum current of 1500 mA, colour temperature from 4700 K to 5500 K, power dissipation of 55 W, and forward voltage from 33.6 V to 40.8 V at 1 A. The LED module offers an angle of half intensity of ± 60° and luminous flux binning. RoHS-compliant, halogen-free, and Vishay Green, the device provides ESD withstand voltage up to 2 kV in accordance with JESD22-A114-B.