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Use the following calculator to analyze and search for HeatSinkUSA's heat sinks that meet your performance criteria. By using this calculator you agree to the Terms of Service

Design custom heat sink

Search vendor heat sinks

Select default and results dimensions:

Length: mm m inches

Temperature: °C °F K

Weight: kg lbs

Velocity: m/sec ft/sec ft/min

Volumetric Flow Rate: m^3/sec CFM

Pressure: Pa psi mm-Hg in-H2O

Power: Watts Btu/hr

Thermal Conductivity: Watts/(m⋅K) Btu/(hr⋅ft⋅F)

Thermal Resistance: K/W hr⋅°F/Btu sec⋅°F/Btu

H: mm m inches

L: mm m inches

W: mm m inches

b: mm m inches

t: mm m inches

N: [Number of fins]

Minimize the source temperature by changing:

b: min mm m inches max mm m inches

t: min mm m inches max mm m inches

s: min mm m inches max mm m inches

Note: Optimization is only available with natural convection or a fan curve input. Why?

Predefined Materials:

Al (Pure) Al (2024-T6) Al (6063-T5) Al (6063-T6) Al (6061-T4) Al (6061-T6) Cu (Pure) W-Cu (W90Cu10) W-Cu (W90Cu12) W-Cu (W90Cu15) W-Cu (W90Cu20) W-Cu (W90Cu25) Mo-Cu (Mo70Cu) Mo-Cu (Mo60Cu) Mo-Cu (Mo50Cu) Carbon-Steel SST(AISI 304) SST(AISI 316)

Thermal conductivity:

Watts/(m⋅K) Btu/(hr⋅ft⋅F)

Specify the maximum allowable heat sink dimensions

H: max mm m inches

L: max mm m inches

W: max mm m inches

Select vendors to search:

(Select All)

All Axis Machining

Fischer Elektronik

Heat Sink USA

Thermo Cool

Show results with a maximum source temperature of: °C °F K

Ambient Temperature:

°C °F K

Radiation

Emissivity:

Custom Emissivity:

Vendor Specified Emissivity

Natural convection

Forced convection

Approach velocity: m/sec ft/sec ft/min

Volumetric flow rate: m^3/sec CFM

Fan Curve:

Note: All the air flow is assumed to pass between the fins of the heat sink

Ls: mm m inches

Ws: mm m inches

P: Watts Btu/hr

Thermal Interface

Material Thickness

mm m inches

Thermal Conductivity

Rth-jc: K/W hr⋅°F/Btu sec⋅°F/Btu

Click the header to sort the corresponding column

Have questions regarding the use of the calculator? Send us an email

Do you need to analyze custom heat sinks or multiple heat sources? Check out the full version of the HeatSinkCalculator