DC Power Jack Male Connector with 2-Pin Screw Terminal (PBT)

The DC Power Jack Male Connector with 2-Pin Screw Terminal (PBT) is a high-quality 5.5mm × 2.1mm DC barrel plug designed for secure, stable, and efficient DC power transmission in a wide range of electronic applications. It is commonly used to connect power adapters to devices such as CCTV cameras, LED strip lights, routers, Arduino boards, Raspberry Pi systems, battery packs, and other low-voltage DC equipment.

This connector is built with a durable PBT (Polybutylene Terephthalate) housing, which provides excellent insulation, high mechanical strength, and resistance to heat and environmental stress. The internal contacts are made from high-conductivity nickel-plated copper, ensuring low contact resistance, efficient current flow, and long-term electrical stability.

The addition of a 2-pin screw terminal allows wires to be connected securely without soldering. This makes installation faster, more convenient, and reusable for multiple projects. The compact design ensures compatibility with standard DC female jacks while maintaining a firm and reliable connection.

With its standard 5.5mm outer diameter and 2.1mm inner pin size, this connector is one of the most widely used DC power interfaces in electronics. It provides a tight and stable fit with matching sockets, ensuring uninterrupted power delivery for sensitive electronic devices.

The DC Power Jack Male Connector with 2-Pin Screw Terminal (PBT) is ideal for both professional installations and DIY electronics projects. It is widely used in CCTV systems, LED lighting, Arduino, ESP32, ESP8266, Raspberry Pi, robotics, IoT devices, home automation, embedded systems, battery-powered circuits, and electronic repair work.

Working Principle

The connector works by transferring DC power from a power source through a 5.5mm × 2.1mm male barrel plug into a compatible female DC socket.

The two screw terminals represent positive (+) and negative (−) connections. Wires are inserted into the terminals and tightened using a screwdriver, creating a firm electrical and mechanical bond. Once connected to a DC female jack, the plug allows stable power transmission to the target device.

The screw terminal system eliminates the need for soldering, simplifies wiring, and allows easy reuse or replacement of connections.

Key Features

• Standard 5.5mm × 2.1mm DC male barrel connector

• Integrated 2-pin screw terminal

• Durable PBT insulated housing

• High-conductivity nickel-plated copper contacts

• Stable and reliable DC power transmission

• Low contact resistance

• Solder-free wire connection

• Compact and lightweight design

• Strong mechanical construction

• Easy installation and reuse

• Long operational life

• Suitable for low-voltage DC systems

• Secure and vibration-resistant connection

Applications

The DC Power Jack Male Connector with 2-Pin Screw Terminal (PBT) is widely used in:

• CCTV camera systems

• LED strip lighting

• Arduino projects

• ESP32 development boards

• ESP8266 IoT projects

• Raspberry Pi systems

• DC power supplies

• Battery packs

• WiFi routers

• Robotics

• Home automation systems

• IoT devices

• Embedded electronics

• Security systems

• Electronic repair and maintenance

• DIY electronics projects

Specifications

• Product Type: DC Power Jack Male Connector

• Connector Type: Male DC Barrel Plug

• Size: 5.5mm × 2.1mm

• Terminal Type: 2-Pin Screw Terminal

• Housing Material: PBT (Polybutylene Terephthalate)

• Contact Material: Nickel-plated copper

• Connection Method: Screw terminal (no soldering required)

• Polarity: Positive (+) and Negative (−)

• Installation Type: Inline connector

• Usage: Low-voltage DC power transmission