Very appreciated if anyone can explain the difference between rated power and power rating. I used to see both of them in electronic magazine.

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    \$\begingroup\$ Welcome to EE.SE - can you provide some context such as where you have seen these terms used? \$\endgroup\$ Apr 8, 2019 at 11:46
  • \$\begingroup\$ @PeterSmith Thanks so much for your response. As I saw that in the library of my school, I am so sorry that it is not so convenient to provide some context here, but I found some context via Google, please take a look at these two datasheet,Resistor1, Resistor2. Resistor1 Has Rated Power, Resistor2 has the Power Rating \$\endgroup\$ Apr 8, 2019 at 12:06

1 Answer 1


In this context they are synonymous.

The rated power or power rating of a resistor is specified over temperature with derating applied above a particular temperature.

Here is the electrical specification for a particular resistor: CC1 resistor

  • \$\begingroup\$ There could also be a semantic aspect to this. Rated power is the 0.04 W value and power rating is the entire entry including the temperature details. \$\endgroup\$
    – user80875
    Apr 8, 2019 at 13:39

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