Heat Sink Thermal Resistance Calculator
This heat sink calculator estimates the temperature rise across the base, thermal interface material (TIM), and fin section. Use it as a heat sink calculator for forced and natural convection applications by entering power input, material properties, and airflow conditions. As a heat sink efficiency calculator, it also lets engineers compare solid aluminum or copper bases against vapor chamber bases, supporting better thermal design decisions before committing to hardware.
If you need to estimate overall heat sink size before running a detailed heat sink resistance calculator analysis, the heat sink size calculator is a good starting point.
Numerous variables have been fixed or limited. Engineers whose designs fall outside the input parameters are encouraged to contact our technical team from the Request a Quote page. See the guide on how to use the heat sink calculator for a full walkthrough of inputs and outputs.
