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Heat Sink Performance Calculator
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Forced Convection
Fin Pack with Solid Metal or Vapor Chamber Base
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Design Tips
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1.
Length - up to 500mm
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2.
Fin Thickness - ranges from 0.2-0.6mm
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3.
Fin Spacing - should be at least 2X the fin thickness
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4.
Fin Height - between 3-100mm. Watch fin efficency - don't make the fins
taller than useful.
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5.
Materials - aluminum or copper. Both can be nickel plated for corrosion
resistance.
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6.
Vapor chamber - copper/water/sintered wick
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Notes
- Airflow in this model assumes zero bypass.
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Inputs (in yellow)
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Heat Source Info
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Power (Q)
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Watts
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Heat Source Length
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mm
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Heat Source Width
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mm
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Heat Source Location
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Center or Corner
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Heat Source Area
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cm2
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Power Density
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W/cm2
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Heat Sink Base Info
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Base Length
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mm
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Base Width (Standard)
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mm
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Material (Metal Base)
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Aluminum or Copper
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Base Thickness
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mm (VC & Metal Base)
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Fin Pack Info
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Fin Height
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mm
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Fin Thickness
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mm
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Fin Gap
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mm
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Air Flow
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CFM
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Fin Material
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Aluminum or Copper
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Ambient Temperature
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Fin Efficiency
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TIM
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Interface Material
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Results
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Air ∆T
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°C
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Fin to Air ∆T
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°C
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Fin ∆T
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°C
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Total Fin Pack ∆T
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°C
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Fin Pack Rth
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°C/W
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" H2O
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PA
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TIM ∆T
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°C
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Base - Fin ∆T
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°C
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Vapor Chamber
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Metal Base
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Base ∆T
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°C
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Total Heat SInk ∆T
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°C
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Thermal
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Conductivity
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w/mk
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Across the length of the VC
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