Dear sir/madame,Which heatsink do you recommend for this Nichia Chip on Board Modul NSCWJ216A 3550lm white?Kind regardsYves Walravens, Belgium
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Diese Frage von Yves W. bezieht sich auf Nichia Chip on Board Modul NSCWJ216A 3550lm white und wurde durch den FAQ-Bot automatisch eingestellt.
Which heatsink
Moderator: T.Hoffmann
Hello,
the matching heat sink depends on the current of the LED.
Also no one can give you a recommendation of a heat sink, as long as (s)he doesn't know, how it should be mounted and so on.
There is no HeatSink in the Shop that can cool the LED at a current that's higher than 350mA.
The Star Cooler (Item no. 60024) should do the Job, if the LED is only driven at 350mA, when it is not covered by a case or something else.
A cooling Element can be calculated by: (Maximum temperature rise) / (LED current * LED forward voltage) = (Maximal thermal resistance of the heatsink)
The lower the thermal resistance, the better the cooling element.
The calculation isn't 100% exact but it gives a good ballpark figure.
Please keep in mind, that the thermal resistance is given at a uniformly heat source and free air convection, so better use a better heat sink than calculated.
Measuring the temperature of the module after installation for at least 1 hour would be the best way to find out, if the cooling is enough.
(The temperature of the LED shouldn't exceed 85°C.)
I hope that helps.
Regards
K Mader
the matching heat sink depends on the current of the LED.
Also no one can give you a recommendation of a heat sink, as long as (s)he doesn't know, how it should be mounted and so on.
There is no HeatSink in the Shop that can cool the LED at a current that's higher than 350mA.
The Star Cooler (Item no. 60024) should do the Job, if the LED is only driven at 350mA, when it is not covered by a case or something else.
A cooling Element can be calculated by: (Maximum temperature rise) / (LED current * LED forward voltage) = (Maximal thermal resistance of the heatsink)
The lower the thermal resistance, the better the cooling element.
The calculation isn't 100% exact but it gives a good ballpark figure.
Please keep in mind, that the thermal resistance is given at a uniformly heat source and free air convection, so better use a better heat sink than calculated.
Measuring the temperature of the module after installation for at least 1 hour would be the best way to find out, if the cooling is enough.
(The temperature of the LED shouldn't exceed 85°C.)
I hope that helps.
Regards
K Mader