Thermal Resistance between Junction and Ambient Calculator

✖Temperature Difference Transistors is denoted by ΔT symbol.ⓘ Temperature Difference Transistors [ΔT]			+10% -10%
✖Power Consumption of Chip is power consumed by the integrated chip when the current flows through it.ⓘ Power Consumption of Chip [P_chip]			+10% -10%

✖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]

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Thermal Resistance between Junction and Ambient Solution

STEP 0: Pre-Calculation Summary

Formula Used

Thermal Resistance between junction and Ambient = Temperature Difference Transistors/Power Consumption of Chip
Θ_j = ΔT/P_chip
This formula uses 3 Variables

Variables Used

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.
Temperature Difference Transistors - (Measured in Kelvin) - Temperature Difference Transistors is denoted by ΔT symbol.
Power Consumption of Chip - (Measured in Watt) - Power Consumption of Chip is power consumed by the integrated chip when the current flows through it.

STEP 1: Convert Input(s) to Base Unit

Temperature Difference Transistors: 2.4 Kelvin --> 2.4 Kelvin No Conversion Required
Power Consumption of Chip: 0.797 Milliwatt --> 0.000797 Watt (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Θ_j = ΔT/P_chip --> 2.4/0.000797

Evaluating ... ...

Θ_j = 3011.29234629862

STEP 3: Convert Result to Output's Unit

3011.29234629862 Kelvin per Watt -->3.01129234629862 Kelvin per Milliwatt (Check conversion here)

FINAL ANSWER

3.01129234629862 ≈ 3.011292 Kelvin per Milliwatt <-- Thermal Resistance between junction and Ambient

(Calculation completed in 00.004 seconds)

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Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

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Thermal Resistance between Junction and Ambient Formula

LaTeX Go

Thermal Resistance between junction and Ambient = Temperature Difference Transistors/Power Consumption of Chip
Θ_j = ΔT/P_chip

How is heat flow determined?

The heat generated by a chip flows from the transistor junctions where it is generated 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 the voltage difference and electrical resistance, the heat flow is determined by temperature difference and thermal resistance.

How to Calculate Thermal Resistance between Junction and Ambient?

Thermal Resistance between Junction and Ambient calculator uses Thermal Resistance between junction and Ambient = Temperature Difference Transistors/Power Consumption of Chip to calculate the Thermal Resistance between junction and Ambient, The Thermal Resistance between junction and ambient formula is defined as the rise in the resistance due to the heating effect in junction. Thermal Resistance between junction and Ambient is denoted by Θ_j symbol.

How to calculate Thermal Resistance between Junction and Ambient using this online calculator? To use this online calculator for Thermal Resistance between Junction and Ambient, enter Temperature Difference Transistors (ΔT) & Power Consumption of Chip (P_chip) and hit the calculate button. Here is how the Thermal Resistance between Junction and Ambient calculation can be explained with given input values -> 3E-6 = 2.4/0.000797.

FAQ

What is Thermal Resistance between Junction and Ambient?

The Thermal Resistance between junction and ambient formula is defined as the rise in the resistance due to the heating effect in junction and is represented as Θ_j = ΔT/P_chip or Thermal Resistance between junction and Ambient = Temperature Difference Transistors/Power Consumption of Chip. Temperature Difference Transistors is denoted by ΔT symbol & Power Consumption of Chip is power consumed by the integrated chip when the current flows through it.

How to calculate Thermal Resistance between Junction and Ambient?

The Thermal Resistance between junction and ambient formula is defined as the rise in the resistance due to the heating effect in junction is calculated using Thermal Resistance between junction and Ambient = Temperature Difference Transistors/Power Consumption of Chip. To calculate Thermal Resistance between Junction and Ambient, you need Temperature Difference Transistors (ΔT) & Power Consumption of Chip (P_chip). With our tool, you need to enter the respective value for Temperature Difference Transistors & Power Consumption of Chip 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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