Calculate Thermal Resistance Heat Sink

P d power dissipated 45 w.

Calculate thermal resistance heat sink.

Calculate the thermal resistance and pressure drop of a plate fin heat sink and study how individual parameters affect the heat sink performance. R1 r 1 thermal resistance of device junction to air if no heat sink or thermal resistance of heat sink r2 r 2 thermal resistance of device junction to air applications of a heat sink calculator the highest operating temperature that a semiconductor in an electronic device can withstand is called its junction temperature. How to calculate thermal resistance of a heat sink in an enclosure the structures in the enclosure do not significantly obstruct the movement of air flow throughout the enclosure air flow through the heat sink is not restricted due to the lack of ventilation in the enclosure radiation exchange. Multiple heat sources attached to the heat sink can be evaluated.

Multiple heat sources attached to the heat sink can be evaluated. This tool is designed to calculate the heat dissipation and the heatsink thermal resistance required given four parameters. Heat source q 1500 w inlet temperature t in 293 k. Heat sink thermal resistance calculator.

Thermal conductivity of material w mk or. Using the following specifications we can use our preferred formula to calculate the thermal resistance of both the s shaped heat sink and our generative heat sink. In addition the calculator automatically determines the optimal dimensions of your heat sink to achieve the lowest heat source temperature. Maximum ambient temperature maximum case temperature power output of your rf amplifier.

Cross sectional area m 2. This heat sink calculator compares heat sinks using a solid metal base to those using a vapor chamber base. Jsa heat sink thermal resistance required 0 222222222222 w. Fin pack air fin to air and fin delta ts interface materials tim and base to fin usually solder and the base both solid metal and vapor chamber bases are shown.

The total heat sink delta t is the sum of the following change in temperatures. Heat sink thermal resistance delta t for each component part of the heat sink. The resistance to heat flow from the junction of the heat generating component through the casing thermal interface material heat sink and finally to environment is represented by the thermal resistance circuit shown in the diagram below. The heatsinkcalculator offers online heat sink analysis software that allows you to analyze plate fins heat sinks cooled via radiation and natural or forced convection.