Vishay Intertechnology,Inc.(NYSE股市代号:VSH)宣布,推出采用小尺寸表面贴装0603 Chip LED封装的新系列真绿色LED——VLMTG1400。VLMTG1400系列器件的尺寸为1.6mm x 0.8mm,高度只有0.55mm,使用了最新的超亮In Ga N芯片技术,使发光强...Vishay Intertechnology,Inc.(NYSE股市代号:VSH)宣布,推出采用小尺寸表面贴装0603 Chip LED封装的新系列真绿色LED——VLMTG1400。VLMTG1400系列器件的尺寸为1.6mm x 0.8mm,高度只有0.55mm,使用了最新的超亮In Ga N芯片技术,使发光强度达到2800mcd。本次发布的这些器件贴装在PCB基板上,具有高亮度和小尺寸的优点。展开更多
The relationship between the photometric, electric, and thermal parameters of light-emitting diodes（LEDs） is important for optimizing the LED illumination design. Indium gallium aluminium phosphide（InGaAlP）-based ...The relationship between the photometric, electric, and thermal parameters of light-emitting diodes（LEDs） is important for optimizing the LED illumination design. Indium gallium aluminium phosphide（InGaAlP）-based thin-film surface-mounted device（SMD） LEDs have attracted wide attention in research and development due to their portability and miniaturization. We report the optical characterization of InGaAlP thin-film SMD LED mounted on FR4, 2 W, and 5 W aluminum（Al） packages. The optical and thermal parameters of LED are determined at different injection currents and ambient temperatures by combining the T3ster（thermal transient tester） and TeraL ED（thermal and radiometric characterization of power LEDs） systems. Analysis shows that LED on a 5 W Al substrate package obtains the highest luminous and optical efficiency.展开更多
文摘Vishay Intertechnology,Inc.(NYSE股市代号:VSH)宣布,推出采用小尺寸表面贴装0603 Chip LED封装的新系列真绿色LED——VLMTG1400。VLMTG1400系列器件的尺寸为1.6mm x 0.8mm,高度只有0.55mm,使用了最新的超亮In Ga N芯片技术,使发光强度达到2800mcd。本次发布的这些器件贴装在PCB基板上,具有高亮度和小尺寸的优点。
文摘The relationship between the photometric, electric, and thermal parameters of light-emitting diodes（LEDs） is important for optimizing the LED illumination design. Indium gallium aluminium phosphide（InGaAlP）-based thin-film surface-mounted device（SMD） LEDs have attracted wide attention in research and development due to their portability and miniaturization. We report the optical characterization of InGaAlP thin-film SMD LED mounted on FR4, 2 W, and 5 W aluminum（Al） packages. The optical and thermal parameters of LED are determined at different injection currents and ambient temperatures by combining the T3ster（thermal transient tester） and TeraL ED（thermal and radiometric characterization of power LEDs） systems. Analysis shows that LED on a 5 W Al substrate package obtains the highest luminous and optical efficiency.
