Electronics > Repair
Identify Resistor Type and Wattage
(1/1)
2X:
Hi, I have the below resistor on a working power supply where I measured it 120Kohm and I would like to replace it for preventing reasons (the colors on the image don't show very good but they match with the measured 120Kohm value). I believe it is a metal film resistor but what watt do you believe is?
The voltage difference across the resistor is 293V and the current 2.4mA P=V*I293V*0.0024A~0.7W. What watt do you suggest to choose... for my designs always I choose the rating wattage to be the double from the working watt?
I found the below:
CPF3120K00FKE14
https://eu.mouser.com/ProductDetail/Vishay-Dale/CPF3120K00FKE14?qs=AgiByKCM3cCJwbXOor8fIg%3D%3D
Carbon Film Vs Metal Film Resistors
https://components101.com/articles/carbon-film-vs-metal-film-resistors
fzabkar:
Is this the startup resistor that powers the main PWM controller IC from the rectified mains? If so, then your replacement resistor is fine, although probably overkill for this application.
2X:
Thank you very much for the reply.
Navigation
[0] Message Index
Go to full version