Heatsink Calculator

Calculate heatsink thermal requirements for proper component cooling.

Thermal Parameters

Power Dissipation (W)

Ambient Temp (C)

Max Junction Temp (C)

Theta JC (C/W)

Thermal Interface

Airflow

Required Heatsink

7.00 C/W

Theta SA (thermal resistance)

Margin: 0.0 C

Temperature Distribution

Junction Temperature125.0 C

Case Temperature115.0 C

Heatsink Temperature110.0 C

Thermal Resistance Chain

Theta JC1 C/W

Theta CS (interface)0.5 C/W

Theta SA (heatsink)7.00 C/W

Total Theta JA8.50 C/W