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mA to Voltage Conversion
Resistor power rating for converting 0-20mA to 0-5 volt.
2 out of 2 members thought this post was helpful...

I want to convert 0-20mA to 0-5 volt. i know for this i should use a 250 Ohm resistor. My question is what should be the power rating of the resistor?

4 out of 4 members thought this post was helpful...

Maximum power will be consumed at maximum voltage and current. P = VI = 5V x 20mA = 0.1W

So maximum power consumed by the resistor will be 0.1W at 20mA. A quarter-watt resistor will be sufficient for this application.

Thank you very much for your suggestion.