Best regards, friend Gabriel, this theme of resistances and its color code is a real issue that can confuse when interpreting a value since as you know there are different codes for resistances of 3, 4, 5, and 6 bands in these cases the last band determines the coefficient of temperature of the resistance and therefore it is the variation in the value that can have the resistance according to the material that is manufactured in either a carbon film or a metal film of which most of the resistances since they are almost always of positive coefficient. in this case this resistance is 250 ppm (250 parts per million) this value would be determined as follows: Brown = 1 (first strip, first significant figure) Black = 0 (second stripe, second significant figure) Gold = (In this case, when the gold is in third place is taken as a multiplying factor by a constant 0.1) Dorada = (It is the tolerance, approximate value in percentage of the value described in the resistance in this case 5%) Black = (Here is the reason for a possible confusion, here the black indicates that this resistance is 250ppm) Then explained this: 10 x 0.1 = 1 to 5% and 250ppm K ° means that the resistance is from one ohm to five percent to two hundred and fifty parts per million Kelvin cattle. Here I leave a table with the values ​​of ppm that applies for resistances of 5 and 6 bands. I hope this contribution has been useful to clear your doubts. regards