DC Jack Connector Male 5.5mm × 2.1mm

The DC Jack Connector Male 5.5mm × 2.1mm is a widely used DC power plug designed for connecting electronic devices to external DC power supplies, adapters, batteries, and power distribution systems. It serves as the male counterpart to the standard female DC barrel jack and provides a secure, stable, and reliable power connection for a wide range of electronic applications.

This connector features a standard 5.5mm outer diameter and 2.1mm inner diameter, making it compatible with most DC power adapters and power supply sockets commonly used in electronics. It is extensively used in Arduino projects, Raspberry Pi systems, CCTV cameras, LED lighting installations, robotics, embedded systems, communication equipment, DIY electronics projects, and industrial control applications.

Manufactured using durable metal contacts and a high-quality insulated housing, the connector ensures excellent electrical conductivity, low contact resistance, and long operational life. The robust design helps maintain a secure connection while preventing accidental disconnections during operation. Depending on the model, it may include solder terminals, screw terminals, or cable-mounted configurations for easy wiring and installation.

Its compact size and universal compatibility make it one of the most commonly used power connectors in low-voltage DC electronic systems. The connector supports efficient power transfer and simplifies the process of connecting power supplies to electronic circuits and devices.

Key Features

• Standard Male DC Barrel Power Connector

• Connector Size: 5.5mm × 2.1mm

• Compatible with standard female DC barrel jacks

• Reliable and secure power connection

• Durable insulated housing

• High-quality metal contacts for efficient conductivity

• Easy installation and wiring

• Compact and lightweight design

• Suitable for low-voltage DC applications

• Long service life and dependable performance

Technical Specifications

• Connector Type: Male DC Barrel Plug

• Outer Diameter: 5.5mm

• Inner Diameter: 2.1mm

• Contact Material: Copper Alloy or Nickel-Plated Metal

• Housing Material: High-Quality Plastic

• Connection Type: Solder Type / Screw Terminal / Cable Mount (depending on model)

• Application: DC Power Transmission

• Compatibility: Standard 5.5mm × 2.1mm Female DC Jacks

Working Principle

The Male DC Jack Connector plugs into a compatible female DC barrel socket to establish an electrical connection between a power source and an electronic device. When inserted, the internal contacts align with the socket contacts, allowing DC voltage and current to flow efficiently to the connected circuit or equipment while maintaining proper polarity and a secure connection.

Applications

• Arduino and microcontroller projects

• Raspberry Pi power connections

• CCTV camera systems

• LED strip lighting installations

• Robotics and automation projects

• Embedded systems development

• DIY electronics projects

• Battery-powered devices

• Communication equipment

• Industrial control systems

• Educational electronics kits

• Consumer electronics repair

Advantages

• Universal compatibility with standard DC jacks

• Reliable power transmission

• Easy to install and wire

• Durable and long-lasting construction

• Compact and lightweight design

• Reduces wiring complexity

• Suitable for hobby, educational, and industrial use

• Stable electrical performance

Package Contents

• 1 × DC Jack Connector Male 5.5mm × 2.1mm

The DC Jack Connector Male 5.5mm × 2.1mm is an essential power connectivity component that provides a secure, reliable, and efficient connection between DC power sources and electronic devices, making it ideal for electronics projects, CCTV systems, LED lighting, robotics, embedded systems, and a wide range of low-voltage DC applications.