What is a wire to board connector? Its types, features, advantages, disadvantages & Applications

A wire-to-board connector is an electrical connector that allows wires to be connected to a printed circuit board (PCB). It is commonly used in electronic devices and machinery to provide a reliable and secure connection between the wires and the PCB.

Types of wire-to-board connectors:

  1. Crimp connectors: These connectors are designed to be crimped onto the end of a wire, providing a secure connection between the wire and the connector.
  2. IDC (Insulation Displacement Connector) connectors: These connectors use a sharp blade to pierce the insulation of the wire, creating a connection between the wire and the connector.
  3. Solder connectors: These connectors require the wire to be soldered onto the connector, creating a permanent connection between the wire and the connector.

Features of wire-to-board connectors:

  1. Contact points: These are the metal points or pins that connect the wire to the PCB. They can be male or female, depending on whether they are designed to be inserted into or receive the wire.
  2. Housing: This is the plastic or metal shell that holds the contact points in place and provides support for the wires. The housing also helps to align the connector with the PCB and protect the connection from damage.
  3. Locking mechanism: Some wire-to-board connectors have a locking mechanism to ensure that the connector remains securely attached to the PCB. This can include clips, latches, or other types of locking mechanisms.
  4. Pitch: The pitch is the distance between the centers of adjacent contact points on the connector. Common pitches for wire-to-board connectors range from 1.25mm to 5.08mm.
  5. Current and voltage ratings: Wire-to-board connectors have specific current and voltage ratings, which determine how much power can safely pass through the connector without causing damage or overheating.
  6. Number of positions: This refers to the number of contact points on the connector. Wire-to-board connectors can have anywhere from 2 to several hundred contact points, depending on the application.
  7. Termination type: This refers to how the wire is terminated or connected to the contact point. Common termination types include crimping, soldering, or using a wire clamp.

Working of wire-to-board connector:

The wire-to-board connector consists of two main parts: the housing and the contacts. The housing is the outer shell that holds the contacts in place, while the contacts are the metal pins that provide the electrical connection. When the wire is inserted into the connector, the contacts make contact with the wire and provide a secure electrical connection.


  1. Easy to install and remove.
  2. Provide a secure and reliable connection.
  3. Allow for easy customization and repair.
  4. Save space on the PCB.
  5. Available in various sizes and configurations.


  1. Costly compared to wire-to-wire connectors.
  2. Require additional tools for installation.
  3. Not suitable for high current applications.


  1. Automotive electronics
  2. Medical devices
  3. Industrial equipment
  4. Consumer electronics
  5. Telecommunications

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