Geometry-to-Performance Tool
Heat Sink Size & Fin Efficiency Estimator
Use this tool when you know the available heat sink envelope but need to understand whether the fins create enough useful cooling area for your heat load.
1How much surface area does this fin geometry really create?
2How much of that area stays thermally effective to the fin tip?
3Can it reject my target heat at the available temperature difference?
Start here — understand what the dimensions change
Airflow along fin length L
Gap s = 2.45 mm
Fin t = 0.40 mm
H = 40 mm
W = 100 mm
Heat enters through base
Skived heat sink
Thin integral fins for high area density
Skiving cuts fins directly from the base material, avoiding a fin-to-base joint while allowing thinner fins and tighter spacing than many conventional extrusion profiles.
- What customers usually want to know: Can a dense skived fin field fit the space and dissipate the load without excessive airflow resistance?
- Best suited to: High-power air cooling, compact envelopes and prototypes requiring dense integral fins.
- Important limitation: More geometric area does not guarantee more cooling when narrow gaps restrict airflow.
Choose the heat sink architecture
The calculator adjusts joint assumptions and design guidance for the selected product.