# Power dissipation calculator

## Calculates the power dissipation of a component package in free air and without any heat sinking material. The result is an estimation based on typical thermal values of components.

 Example 1: Must calculate the junction temperature of the semiconductor packaged in PDIP40 case dissipating 800mW of power in 25 degrees ambient temperature View example Example 2: Must calculate the maximum ambient temperature of the semiconductor packaged in TO-220 case having a maximum junction temperature of 150 degrees celsius and is dissipating 1.6 watts of power View example Example 3: Must calculate the maximum power dissipation of the semiconductor packaged in SOT-23 case having a maximum junction temperature of 150 degrees celsius and is required to operate in 60 degrees ambient temperature View example
 Package CPGA84CPGA100CPGA132CDIP24D3CDIP24D6CDIP28D6CDIP32D6CDIP40D6PDIP8PDIP14PDIP16PDIP20PDIP24PDIP28PDIP32PDIP40LCC28LCC32LCC44LCC68PLCC20PLCC28PLCC32PLCC44PLCC68PLCC84JLCC28JLCC32JLCC44CERPACK24FLATPACK28FLATPACK32PGA28PGA30SIDEBRAZE32SOIC8SOIC14SOIC16SOIC20SOIC24PQFP44PQFP100PQFP160TQFP44TQFP100TSOP28TSOP32TSOP40TSOP48TSSOP14TSSOP20TSSOP24TSSOP28MLF32MLF44MLF64TO-252TO-220TO-3TO-92TO-252-5SOT-23SOT-223SOT-89SOT-323 Ambient temperature degrees celsius Junction temperature degrees celsius Power watts
You may use one of the following SI prefix after a value: p=pico, n=nano, u=micro, m=milli, k=kilo, M=mega, G=giga

 Results J-A thermal resistance 50 °C/W Ambient temperature 70 degrees