Female DC Power Supply Connector / Barrel DC Jack

The Female DC Power Supply Connector, also known as a Barrel DC Jack, is a widely used power connector designed to provide a secure and reliable connection between a DC power source and electronic devices. It serves as the receiving end of a DC power connection, allowing compatible male DC plugs to be connected for delivering power to circuits, modules, and electronic equipment.

This connector is commonly used in Arduino projects, Raspberry Pi power systems, CCTV cameras, LED lighting systems, routers, communication devices, embedded systems, DIY electronics, and various industrial applications. It provides a simple and convenient way to connect external DC adapters, battery packs, or regulated power supplies to electronic circuits without the need for permanent wiring.

The Female DC Barrel Jack is typically designed for standard 5.5mm outer diameter and 2.1mm inner diameter DC plugs, making it compatible with a wide range of commercially available power adapters. Constructed from high-quality plastic and metal contacts, it offers excellent electrical conductivity, mechanical strength, and long-term durability. The insulated housing ensures user safety while protecting internal connections from accidental short circuits.

Many versions include screw terminals or solder terminals, allowing quick and secure wire connections without specialized tools. Its compact design makes it suitable for space-constrained projects while ensuring stable and uninterrupted power delivery.

Key Features

• Standard Female DC Barrel Power Connector

• Compatible with 5.5mm × 2.1mm DC plugs

• Reliable and secure power connection

• Durable plastic housing with metal contacts

• Easy installation and wiring

• Available with screw terminal or solder terminal options

• Compact and lightweight design

• Suitable for low-voltage DC applications

• Long operational life and reliable performance

Technical Specifications

• Connector Type: Female DC Barrel Jack

• Common Size: 5.5mm Outer Diameter × 2.1mm Inner Diameter

• Connection Type: Screw Terminal or Solder Terminal

• Contact Material: Nickel-Plated or Copper Alloy Contacts

• Housing Material: High-Quality Insulated Plastic

• Operating Voltage: Suitable for various DC voltage applications

• Mounting Type: Panel Mount, PCB Mount, or Terminal Type (depending on model)

Working Principle

The Female DC Barrel Jack receives power from a compatible male DC plug connected to a power adapter or DC source. When the plug is inserted, the internal metal contacts establish an electrical connection, allowing current to flow from the power source to the connected device or circuit. The connector ensures stable power transfer while maintaining proper polarity and electrical safety.

Applications

• Arduino and Raspberry Pi projects

• CCTV camera power connections

• LED strip lighting systems

• DIY electronics projects

• Embedded system development

• Robotics and automation projects

• Wireless communication devices

• Power supply adapters

• Consumer electronics

• Educational electronics kits

• Industrial control systems

• Battery-powered devices

Advantages

• Quick and secure power connection

• Easy installation and maintenance

• Compatible with standard DC adapters

• Durable and reliable construction

• Compact size for space-saving designs

• Safe and stable power transmission

• Suitable for hobby, educational, and industrial applications

• Reduces wiring complexity

Package Contents

• 1 × Female DC Power Supply Connector / Barrel DC Jack

The Female DC Power Supply Connector / Barrel DC Jack is an essential power interface component that provides a dependable, safe, and convenient method for connecting DC power supplies to electronic devices, making it ideal for electronics projects, embedded systems, robotics, CCTV installations, and various low-voltage power applications.