this is for you :) :D ExamplesĮxemple: If first color is RED ,second is RED ,third is BLACK and the last is SILVER it means: If you are too lazy to think about colors and digits and mat.
How to read resistor color code code#
For example a 390 resistor with a tolerance of ☑0% will have a value within 10% of 390, between 390 - 39 = 351 and 390 + 39 = 429 (39 is 10% of 390).Ĭalculator Resistor color code calculator Tolerance is the precision of the resistor and it is given as a percentage. Digits from the first colors must be multiplied with the number of this color.Īnd the last color: This is tolerance. From right to left the second color is multiplier. As you can see they are:īut this is not for all colors. Here is the table with the colors and numbers. However it's your decision ,and I will show you all ways to calculate resistor value.
OR there are much resistor calculators that you can use. Every color is different number and you can remember these numbers or you can just use the table on next step. Here is an example from Yageo showing a 4 band resistor with a special band.The value of the resistor is marked on the body using colors. Most resistor companies will put a slightly larger gap between the multiplier and the tolerance gap then between the other bands. One key indicator is to look for a gap in the bands.
How do I tell if my resistor is a 4 band or a 5 band? If my 5 band is a 4 band then what is the 5th band? Some troubleshooting in resistor band coding is identified in Digikey Tech forum by Robert Fay: introduction of Annex A, Special three character coding of resistance value with three significant numerals.introduction of two new clauses, Clause 6, Coding of properties specific to capacitors and Clause 7, Coding of properties specific to resistors.inclusion of a new subclause on a fixed length code marking, fixed length code marking of resistance values with up to 3 significant digits, hence a fixed code length of 4 digits, and fixed length code marking of capacitance values with up to 2 significant digits, hence a fixed code length of 3 digits.inclusion of illustrations for TCR marking by interrupted colour band.introduction of new subclauses, 3.2 Prescription of code colours, 3.3 Methods for marking resistance value and tolerance, 3.4 Methods for TCR marking, for improved clarity, the subjects of colour assignment, coding of R value and tolerance, and coding of TCR is dealt with in separate clauses.introduction of the new code colour pink for the coding of the multiplier 10 -3.The latest edition includes the following significant technical changes with respect to the previous edition: It also provides date code systems suitable for the marking of small components. It provides coding methods for the resistance or capacitance value and its tolerance, including colour coding for resistors. IEC 60062:2016 specifies designation and marking codes for capacitors and resistors.
To meet those requirements in the low ohmic range, a new multiplier for the 3rd or 4th color code band ( /1000) has been introduced and added to the standard IEC 60062:2016 its color is PINK. These application need special stable resistors in 1 MOhm-ranges, with tight tolerance and low thermal coefficient (TCR). Main reasons are the strong trends to electro-mobility and photovoltaic. The total consumption will be probably ahead of 1300 billion pieces in 2018, according to Reiner Kuehl’s estimations.įurther growth can be foreseen. World market of resistors has grown continuously by approx.