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What are e-codes?

Published in Electronics 2 mins read

E-codes are a system of codes used to identify and classify different types of electronic components. They are widely used in the electronics industry to ensure that the right parts are used in the right applications.

What are e-codes used for?

E-codes are used for various purposes, including:

  • Component identification: E-codes provide a standardized way to identify and differentiate between different electronic components.
  • Component ordering: E-codes are used to order components from manufacturers and suppliers.
  • Component inventory management: E-codes help to organize and manage component inventories.
  • Circuit design: E-codes are used in circuit design to select the appropriate components for specific applications.

How do e-codes work?

E-codes are based on a system of letters and numbers that represent the component's value. For example, the e-code "100" represents a resistance value of 100 ohms. The e-code system is based on a logarithmic scale, which means that each e-code represents a specific range of values.

Examples of e-codes:

  • 100: Represents a resistance value of 100 ohms.
  • 220: Represents a resistance value of 220 ohms.
  • 470: Represents a resistance value of 470 ohms.
  • 1K0: Represents a resistance value of 1 kilohm (1000 ohms).
  • 2K2: Represents a resistance value of 2.2 kilohms.

Importance of e-codes:

E-codes are essential for the electronics industry because they provide a standardized system for identifying and classifying components. This helps to ensure that the right parts are used in the right applications, which is crucial for the reliable operation of electronic devices.