Heat Sink Calculator Led

As an example we take a led cob model which has a nominal forward current if of 450ma and a maximal forward current of 900ma.

Heat sink calculator led.

A reference link has been placed below the calculator for further reading. In our experience it generally estimates the overall heat sink volume within 15 of a final design. Thermal calculation calculation of the required led cooler thermal resistance rth. You could use the results as guidance in selecting a heat sink for multiple leds but this will not consider factors such as the distance between each led total wattage of multiple leds etc.

Suitable candidates include the mechatronix lpf6050 zhc. Note that the calculator we provide can only determine the c w rating of a heat sink for a single led. For example let s say we are selecting a heat sink for an osram prevaled core z3 1100 led cob module which is 1100 lumens. The heat sink size calculator is based on a well established equation for estimating heat sink volume during the early stages of heat sink design.

The basics to do that is to understand the scheme at the right each part of the design adds up some heat due to individual thermal resistances of each. This compact heat sink is 60mm in diameter and 50mm tall and it has a thermal resistance θs of 4 0 c w.