NOTE 1 – The virtual temperature is not necessarily the highest temperature in the device.

NOTE 2 – Based on the power dissipation and the thermal resistance or impedance that corresponds to the mode of operation, the virtual junction temperature can be calculated from the formula:

${\displaystyle T_{\text{j}}=T_{\text{case}}+\frac{P}{R_{\text{th}}}}$ or ${\displaystyle T_{\text{j}}=T_{\text{amb}}+\frac{P}{R_{\text{th}}}}$