SMT Resistor Code Calculator

This calculator converts the 3 digit codes which are found on surface mount resistors.

 Calculate Resistance

Resistance =

Prefered Resistor Values

Resistors are available in a number of standard (Prefered) ranges or series and these are: E3, E6, E12, E24, E48, E96 and E192. The E denotes the number of values the series contains per decade.

E3: 50% tolerance
E6: 20% tolerance
E12: 10% tolerance
E24: 5% tolerance
E48: 2% tolerance
E96: 1% tolerance
E192: less than 1% tolerance

 

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