Resistor color coding

 

Resistance color coding

Resistors are essential components in electronic circuits, they control the flow of electric current.

To identify their resistance value, a color coding system is used.

Why Use Color Coding?

Resistors are small, and printing numerical values on them and reading those values is difficult. Instead, manufacturers use colored bands to represent values, to ensure quick identification without using any special equipment.

The Resistor Color Code System

Resistors typically have four, five, or six color bands. Each color corresponds to a numerical value, a multiplier, and sometimes a tolerance.

Standard Four-Band System

• First and Second Bands: Represent the first two digits of the resistance value.
• Third Band: Acts as the multiplier (10 raised to a power).
• Fourth Band: Indicates tolerance (accuracy of the resistor value).

Resistors have colored bands that represent numbers.

To find the resistance, you read the first two colored bands as numbers. The third band tells you how many zeros to add.

How to remember color code?

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