Calculate Thermal Resistance Heat Sink

Heat sink thermal resistance calculator.

Calculate thermal resistance heat sink.

Heat sink thermal resistance calculator use this online calculator to determine the heat sink thermal resistance required to maintain a specified component junction temperature. This tool is designed to calculate the heat dissipation and the heatsink thermal resistance required given four parameters. P d power dissipated 45 w. 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.

Jsa heat sink thermal resistance required 0 222222222222 w. In addition the calculator automatically determines the optimal dimensions of your heat sink to achieve the lowest heat source temperature. The total heat sink delta t is the sum of the following change in temperatures. Calculate the thermal resistance and pressure drop of a plate fin heat sink and study how individual parameters affect the heat sink performance.

Multiple heat sources attached to the heat sink can be evaluated. Cross sectional area m 2. Heat sink thermal resistance delta t for each component part of the heat sink. This heat sink calculator compares heat sinks using a solid metal base to those using a vapor chamber base.

Input the cross sectional area m 2 add your materials thickness m enter the hot side temperature c enter the cold side temperature c click calculate solve for conduction heat transfer. Maximum ambient temperature maximum case temperature power output of your rf amplifier. Thermal conductivity of material w mk or. 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.

Heat source q 1500 w inlet temperature t in 293 k. Multiple heat sources attached to the heat sink can be evaluated. 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. 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.