How to Read the Resistance Value of a Color-coded Resistor 1

A color-coded resistor (also known as a coded resistor or resistor) is an electronic component with colored bands used to indicate its resistance value. It typically consists of a slender resistive element and several colored bands. Each colored band represents a digit or a multiplier factor. By reading the colors of these bands, the resistance value of the resistor can be determined.diode

Generally, color-coded resistors have four or five colored bands, each representing a value or a multiplier. The sequence of these colored bands runs from left to right, typically starting with a metal band. Below are the common color bands for resistors and their corresponding values:

The first band is the first digit, representing the most significant digit of the resistance value.diode

2. The second band represents the second digit, indicating the second-highest place value of the resistance.

3. The third band is the multiplier, indicating the magnitude of the resistance value.diode

4. The fourth band represents the tolerance value, indicating the allowable error range of the resistor's value. Sometimes there may also be a fifth band, which denotes the temperature coefficient.diode

To read the resistance value of a color-coded resistor, follow these steps: