Exampleĭetermine the ohmic value of the carbon resistor with color bands given in the following figure.įig.
3 BAND RESISTOR COLOR CODE HOW TO
The first three bands tell you how to compute the resistance in ohms.The fourth, if present, indicates the tolerance (). Consequently, any value between 9 ohm is within the tolerance range and is satisfactory. Resistors will have either 3 or 4 bands on them. Next, look at some of these 1 Ohm, 5 resistors. Try the Resistor Color Code Calculator, again, with brown, black, gold, and gold in the 4-Band mode. The tolerance band is Gold, which represents $\pm 5$% (see Table 1). That might be a four-band, wire-wound resistor at 1 Ohm, 5 tolerance, with a fifth band for a specific purpose. Therefore, the resistor’s ohmic value is 1000 ohm, which frequently written as 1 kΩ (k=1000). The multiplier band is red, which indicates that two zeros must be added. The first two bands of the resistor represent the first and second significant numbers and are brown and black, which, from Table 1, represent 1 and 0, respectively. a system of three colors painted on the resistor in the form of narrow bands, dots, or as a body color.
4.3 Six-band-code resistor The identification of this resistor is the same as the above mentioned resistors, but the sixth color ring represents the temperature coefficient of the resistor. The use of the code can be understood by referring to the resistor shown in figure 1.įig.2: Color-Coded Carbon Composition Resistor RMA Resistor and Flexible Resistor Color Codes. Resistance (first color-band value 100+second color band value 10+third color-band value) the multiplier of the fourth color band. Table.1: Standard Resistor Color Code Using the color code