Female DC Power Jack

This is a 5.5mm x 2.1mm Female DC power jack socket with panel mount. This DC socket connector comes with vertical holes to mount it in your application. The center pin is available with  2.1mm or 2.5mm. In addition, the female plug is 2.5mm/2.1mm x 5.5mm also provides good environmental protection.

It is an ideal application for household appliances, electric force, telecommunications, machine tool, vessel, textile, printing, Mining machine, Music Instrument, etc.

A DC Power Jack 2.1 mm is a widely used electrical connector designed to receive direct current (DC) power from an external source. Found in countless electronic devices—from consumer gadgets to industrial equipment—this compact yet vital component provides a safe, consistent, and user-friendly power interface. Whether you’re designing a product, replacing a worn-out connector, or building a DIY electronics project, understanding the role and types of female DC jacks is essential.

What Is a Female DC Power Jack?

A DC Power Jack connector (also called a DC barrel socket or DC power connector) is the receptacle part of a two-piece connector system. It mates with a male DC plug, forming a secure power connection. These jacks typically consist of an outer metal sleeve, an inner contact pin, and one or more terminals or leads for electrical connection to the device's circuitry.

DC power jacks are designed for low-voltage applications—commonly ranging from 5V to 24V—and are ideal for powering electronics like routers, radios, LED lighting, and test instruments.

Key Features

1. Standard Barrel Sizes
   Female DC jacks come in standard barrel sizes. The most common is 5.5mm outer diameter with 2.1mm or 2.5mm inner diameter. It’s important to match plug and socket dimensions to avoid loose connections or power failure.

2. Voltage & Current Ratings
   Most jacks are rated between 12V to 24V, with current ratings ranging from 1A to 5A or more. Always choose a jack that meets or exceeds the power requirements of your device.

3. Mounting Options

• PCB Mount: For direct soldering onto a circuit board.

• Panel Mount: For enclosure or device chassis installation, offering front-facing access.

• Cable Mount: For inline connections or custom power cable assemblies.

4. Polarity & Safety
   Many female dc jack connectorks are center-positive, meaning the inner pin carries the positive voltage. Using the wrong polarity can damage sensitive electronics, so it's critical to verify the configuration before making connections.

5. Switching Feature (3-pin versions)
   Some jacks include a third terminal that disconnects internal battery power when an external plug is inserted, allowing seamless power source switching.

Features:

1. Excellent copper contacting or mating material

2. Suitable for 12V to 30 V 1A Applications

3. Avoid the polarity conflict and short circuit.

4. Specifications

5. Working voltage : 12V to 30V

6. Power rating : 1A

7. Type : Female DC power socket

8. Size : 5.5mm x 2.1mm

9. Contacting material : High quality Copper

10. Highly insulated for short circuit protection