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Heat Dissipation Performance of the Nichia NVSxx19C Series LEDs

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Heat Dissipation Performance of the Nichia NVSxx19C Series LEDs

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Nichia’s NVSxx19C series LEDs offer two different types of electrode designs: LEDs with one cathode and one anode electrode (i.e. NVSx119C) and LEDs with an electrically isolated die heat sink in addition to these two electrodes (i.e. NVSx219C). The thermal resistances (RθJS) from the LED die to the TS measurement point are the same for both of those types. However, the difference in the design of the LED (i.e. electrodes/heat sink pad on the back of the LED package) and/or the soldering pad pattern of the printed circuit board (PCB) may cause the thermal path to change causing a difference in the heat dissipation.

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