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Power dissipation of SMD resistors.

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nguyennam

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Who knows what is the power dissipation rates of SMD resistors or links to relevant documents?

Thank you very much in advance.
nguyennam
 

Compare power rating of smd resistors from several manufacturers ...
Here is a good starting point:
**broken link removed**
For example, general purpose category:
**broken link removed**


Regards,
IanP
 

    nguyennam

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It is better/safe to check the specification from the manufacturer of smd resistor.
 

Power dissipated in resistor = Voltage drop across resistor X current flow

Make sure the power dissipated never exceed the power rating of resistor.
Power rating of resistor is based on the size of resistor. Exp the rated power of 0603 resistor is 0.1W.
 

nguyennam,
Manufacturer's data sheets give the maximum power rating at a given temperature, usually 25 degC or 70 degC. They also give a temperature derating characteristic. Resistor power ratings derate linearly from the full rating at a specified temperature to 0 at a higher temperature (tyically 150 deg C).
Regards,
Kral
 

Thank you guys very much for your suggestions. I have understood something from you and various manufacturers' websites. I really did not think about "googling" the necessary informations.

nguyennam
 

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