SMD Resistor Code Calculator​

SMD Resistor Code Calculator helps you determine the resistance value of an SMD resistor using the markings found on the device. Choose the code format: three-digit EIA, four-digit EIA, or EIA-96. Then select the markings.3 Digit EIA Standard-tolerance SMD resistors use a 3-digit code to mark the resistance value on the part. The first two numbers will indicate the significant digits, and the third will be the multiplier. R is used to indicate the position of a decimal point.4 Digit EIA Similar to the three digit EIA, the four digit format uses the beginning values to indicate the significant digits while the last digit is the multiplier. R is used to indicate the position of a decimal point. The four digit format allows for higher precision.EIA-96The EIA96 system of part marking is based on the EIA96 series of standard resistor values and is typically used on 1% tolerance parts. It uses three characters (two numbers and a digit) in which the numbers represent the value (12 = 12th value of the possible range) and the letter represents the multiplier.