How to find the resistor (MOR) wattage ?

[satya_vijayawada]

Resistor wattage

Hai

how to find the resistor(MOR) wattage.

any methode available for to find the rersistor wattage(dont conceder resister size)

with regards
satya

 

[flatulent]

Re: Resistor wattage

The power dissipation is related to the surface area of the package and how much of the area is exposed to air flow. It also has a derating factor dependent on the surrounding air temperature and the amount of metal connected to the leads and if another resistor is connected in series with it.

Your best bet is to look at data sheets from resistor companies for resistors in the same package type.

 

[pourfardm]

Re: Resistor wattage

As my friends said how the resisitor fatter the wattage higher ,but in resistor with very low ohm it is not true and sometimes with resister which are not ceramic.

As a good a measure if you are sure the range of resister are higher than 50 ohm and they are from the same company the fatter would be the higher.