All Calculators
Junction Temperature Calculator
Calculate device junction temperature from thermal stack resistances.
Input Parameters
W
Total power dissipated by the device
°C
Operating environment temperature
°C/W
From device datasheet
°C/W
Thermal interface material resistance
°C/W
Heat sink thermal resistance
°C
Device maximum junction temperature
Results
Over Temperature Limit
110.0°C over max temperature
Junction Temperature
260.0°C
Thermal Stack
Ambient40.0°C
Heat Sink190.0°C
Case210.0°C
Junction260.0°C
Formula Used
Tj = Ta + P × (Rth_jc + Rth_cs + Rth_sa)