Series Resistance from Package to Air Calculator

✖Thermal Resistance between junction and Ambient is defined as the rise in the resistance due to the heating effect in junction.ⓘ Thermal Resistance between junction and Ambient [Θ_j]			+10% -10%
✖Series Resistance from Die to Package is defined as the resistance experienced from die to the package.ⓘ Series Resistance from Die to Package [Θ_jp]			+10% -10%

✖Series Resistance from Package to Air is defined as the resistance experienced from package to the air.ⓘ Series Resistance from Package to Air [Θ_pa]

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Series Resistance from Package to Air Solution

STEP 0: Pre-Calculation Summary

Formula Used

Series Resistance from Package to Air = Thermal Resistance between junction and Ambient-Series Resistance from Die to Package
Θ_pa = Θ_j-Θ_jp
This formula uses 3 Variables

Variables Used

Series Resistance from Package to Air - (Measured in Kelvin per Watt) - Series Resistance from Package to Air is defined as the resistance experienced from package to the air.
Thermal Resistance between junction and Ambient - (Measured in Kelvin per Watt) - Thermal Resistance between junction and Ambient is defined as the rise in the resistance due to the heating effect in junction.
Series Resistance from Die to Package - (Measured in Kelvin per Watt) - Series Resistance from Die to Package is defined as the resistance experienced from die to the package.

STEP 1: Convert Input(s) to Base Unit

Thermal Resistance between junction and Ambient: 3.01 Kelvin per Milliwatt --> 3010 Kelvin per Watt (Check conversion here)
Series Resistance from Die to Package: 1.6 Kelvin per Milliwatt --> 1600 Kelvin per Watt (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Θ_pa = Θ_j-Θ_jp --> 3010-1600

Evaluating ... ...

Θ_pa = 1410

STEP 3: Convert Result to Output's Unit

1410 Kelvin per Watt -->1.41 Kelvin per Milliwatt (Check conversion here)

FINAL ANSWER

1.41 Kelvin per Milliwatt <-- Series Resistance from Package to Air

(Calculation completed in 00.020 seconds)

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Credits

Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

Shobhit Dimri has created this Calculator and 900+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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Series Resistance from Package to Air Formula

LaTeX Go

Series Resistance from Package to Air = Thermal Resistance between junction and Ambient-Series Resistance from Die to Package
Θ_pa = Θ_j-Θ_jp

What is heat dissipation in packaging?

The heat generated by a chip flows from the transistor junctions where it is generate through the substrate and package. It can be spread across a heat sink, and then carried away through the air by means of convection. Just as current flow is determined by voltage difference and electrical resistance, the heat flow is determined by temperature difference and thermal resistance.

How to Calculate Series Resistance from Package to Air?

Series Resistance from Package to Air calculator uses Series Resistance from Package to Air = Thermal Resistance between junction and Ambient-Series Resistance from Die to Package to calculate the Series Resistance from Package to Air, The Series resistance from package to air formula is defined as resistance experienced from package to air. Series Resistance from Package to Air is denoted by Θ_pa symbol.

How to calculate Series Resistance from Package to Air using this online calculator? To use this online calculator for Series Resistance from Package to Air, enter Thermal Resistance between junction and Ambient (Θ_j) & Series Resistance from Die to Package (Θ_jp) and hit the calculate button. Here is how the Series Resistance from Package to Air calculation can be explained with given input values -> 0.0014 = 3010-1600.

FAQ

What is Series Resistance from Package to Air?

The Series resistance from package to air formula is defined as resistance experienced from package to air and is represented as Θ_pa = Θ_j-Θ_jp or Series Resistance from Package to Air = Thermal Resistance between junction and Ambient-Series Resistance from Die to Package. Thermal Resistance between junction and Ambient is defined as the rise in the resistance due to the heating effect in junction & Series Resistance from Die to Package is defined as the resistance experienced from die to the package.

How to calculate Series Resistance from Package to Air?

The Series resistance from package to air formula is defined as resistance experienced from package to air is calculated using Series Resistance from Package to Air = Thermal Resistance between junction and Ambient-Series Resistance from Die to Package. To calculate Series Resistance from Package to Air, you need Thermal Resistance between junction and Ambient (Θ_j) & Series Resistance from Die to Package (Θ_jp). With our tool, you need to enter the respective value for Thermal Resistance between junction and Ambient & Series Resistance from Die to Package and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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