Maximum Junction Temperature of TRIAC Calculator

✖Ambient Temperature triac that are designed to operate in high ambient temperatures. They have a higher junction temperature rating than standard triac.ⓘ Ambient Temperature [T_a]			+10% -10%
✖Dissipation Power of a triac is the amount of heat that is generated by the triac when it is conducting current.ⓘ Dissipation Power [P]			+10% -10%
✖Junction to Ambient Thermal Resistance of a triac (R) is the measure of how well the triac dissipates heat from its junction to the ambient air.ⓘ Junction to Ambient Thermal Resistance [R_th(j-a)]			+10% -10%

✖The maximum operating junction temperature (T_Jmax) of an IGBT is the highest temperature at which the IGBT can safely operate. It is typically specified in degrees Celsius (°C).ⓘ Maximum Junction Temperature of TRIAC [T_jmax]

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Formula

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Maximum Junction Temperature of TRIAC

Formula

`"T"_{"jmax"} = "T"_{"a"}+"P"*"R"_{"th(j-a)"}`

Example

`"196.4454°C"="102.4°C"+"0.66W"*"142.493Ω"`

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Maximum Junction Temperature of TRIAC Solution

STEP 0: Pre-Calculation Summary

Formula Used

Maximum Operating Junction = Ambient Temperature+Dissipation Power*Junction to Ambient Thermal Resistance
T_jmax = T_a+P*R_th(j-a)
This formula uses 4 Variables

Variables Used

Maximum Operating Junction - (Measured in Kelvin) - The maximum operating junction temperature (T_Jmax) of an IGBT is the highest temperature at which the IGBT can safely operate. It is typically specified in degrees Celsius (°C).
Ambient Temperature - (Measured in Kelvin) - Ambient Temperature triac that are designed to operate in high ambient temperatures. They have a higher junction temperature rating than standard triac.
Dissipation Power - (Measured in Watt) - Dissipation Power of a triac is the amount of heat that is generated by the triac when it is conducting current.
Junction to Ambient Thermal Resistance - (Measured in Ohm) - Junction to Ambient Thermal Resistance of a triac (R) is the measure of how well the triac dissipates heat from its junction to the ambient air.

STEP 1: Convert Input(s) to Base Unit

Ambient Temperature: 102.4 Celsius --> 375.55 Kelvin (Check conversion here)
Dissipation Power: 0.66 Watt --> 0.66 Watt No Conversion Required
Junction to Ambient Thermal Resistance: 142.493 Ohm --> 142.493 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

T_jmax = T_a+P*R_th(j-a) --> 375.55+0.66*142.493

Evaluating ... ...

T_jmax = 469.59538

STEP 3: Convert Result to Output's Unit

469.59538 Kelvin -->196.44538 Celsius (Check conversion here)

FINAL ANSWER

196.44538 ≈ 196.4454 Celsius <-- Maximum Operating Junction

(Calculation completed in 00.004 seconds)

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Created by Mohamed Fazil V

Acharya institute of technology (AIT), Bengaluru

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< 4 TRIAC Calculators

Power Dissipation of TRIAC

Go Maximum Power Dissipation = Knee Voltage*Average Load Current+Conductivity Resistance*RMS Current^2

Maximum Junction Temperature of TRIAC

Go Maximum Operating Junction = Ambient Temperature+Dissipation Power*Junction to Ambient Thermal Resistance

Average Load Current of TRIAC

Go Average Load Current = (2*sqrt(2)*RMS Current)/pi

RMS Load Current of TRIAC

Go RMS Current = Peak Current/2

Maximum Junction Temperature of TRIAC Formula

Maximum Operating Junction = Ambient Temperature+Dissipation Power*Junction to Ambient Thermal Resistance
T_jmax = T_a+P*R_th(j-a)

What is Maximum Junction Temperature of TRIAC ?

The maximum junction temperature of a TRIAC refers to the highest temperature that the semiconductor junction of the TRIAC can safely reach without risking damage to the device. This temperature is a critical parameter to consider in the design and operation of a TRIAC, as exceeding the maximum junction temperature can lead to device failure and reduced lifespan. The maximum junction temperature is typically specified by the manufacturer in the TRIAC's datasheet. It is important to operate the TRIAC within the specified temperature limits to ensure reliable and safe performance. Exceeding the maximum junction temperature can cause thermal stress on the device, potentially leading to breakdown, reduced switching performance, or permanent damage.

How to Calculate Maximum Junction Temperature of TRIAC?

Maximum Junction Temperature of TRIAC calculator uses Maximum Operating Junction = Ambient Temperature+Dissipation Power*Junction to Ambient Thermal Resistance to calculate the Maximum Operating Junction, Maximum Junction Temperature of TRIAC is the highest temperature that the triac's junction can withstand without being damaged. The maximum junction temperature is an important parameter to consider when designing a triac circuit, as it determines the maximum power that the triac can dissipate without overheating. If the triac's junction temperature exceeds its maximum rating, it may fail. Maximum Operating Junction is denoted by T_jmax symbol.

How to calculate Maximum Junction Temperature of TRIAC using this online calculator? To use this online calculator for Maximum Junction Temperature of TRIAC, enter Ambient Temperature (T_a), Dissipation Power (P) & Junction to Ambient Thermal Resistance (R_th(j-a)) and hit the calculate button. Here is how the Maximum Junction Temperature of TRIAC calculation can be explained with given input values -> -76.70462 = 375.55+0.66*142.493.

FAQ

What is Maximum Junction Temperature of TRIAC?

Maximum Junction Temperature of TRIAC is the highest temperature that the triac's junction can withstand without being damaged. The maximum junction temperature is an important parameter to consider when designing a triac circuit, as it determines the maximum power that the triac can dissipate without overheating. If the triac's junction temperature exceeds its maximum rating, it may fail and is represented as T_jmax = T_a+P*R_th(j-a) or Maximum Operating Junction = Ambient Temperature+Dissipation Power*Junction to Ambient Thermal Resistance. Ambient Temperature triac that are designed to operate in high ambient temperatures. They have a higher junction temperature rating than standard triac, Dissipation Power of a triac is the amount of heat that is generated by the triac when it is conducting current & Junction to Ambient Thermal Resistance of a triac (R) is the measure of how well the triac dissipates heat from its junction to the ambient air.

How to calculate Maximum Junction Temperature of TRIAC?

Maximum Junction Temperature of TRIAC is the highest temperature that the triac's junction can withstand without being damaged. The maximum junction temperature is an important parameter to consider when designing a triac circuit, as it determines the maximum power that the triac can dissipate without overheating. If the triac's junction temperature exceeds its maximum rating, it may fail is calculated using Maximum Operating Junction = Ambient Temperature+Dissipation Power*Junction to Ambient Thermal Resistance. To calculate Maximum Junction Temperature of TRIAC, you need Ambient Temperature (T_a), Dissipation Power (P) & Junction to Ambient Thermal Resistance (R_th(j-a)). With our tool, you need to enter the respective value for Ambient Temperature, Dissipation Power & Junction to Ambient Thermal Resistance 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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