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The $5.5\text{mm}\times 2.1\text{mm}$ DC Power Connector Male and Female Pair is an essential solderless wiring adapter designed to make DC low-voltage power connections fast, reliable, and reusable. Each connector consists of a standard $5.5\text{mm}\times 2.1\text{mm}$ barrel interface on one end (male plug or female socket) connected internally to a 2-pin screw terminal block on the rear.

Constructed with high-quality nickel-plated brass contacts housed in heavy-duty molded PVC plastic, these adapters ensure low electrical resistance and maximum corrosion protection. The terminal block features clearly molded positive ($+$) and negative ($-$) polarity markers directly on the housing, eliminating wiring mistakes and accidental reverse-polarity damage to your sensitive electronics. Whether you are extending CCTV cables, wiring RGB/Single-color LED strip lighting, or creating custom $12\text{V}$ battery output leads, these adapters provide a professional, tool-free connection in seconds using only a small flathead or Phillips screwdriver.

Key Features

• Solderless Screw Terminal Design: Features heavy-duty 2-pin screw terminals for easy, tool-free wiring without requiring a soldering iron.

• Standard $5.5\text{mm}\times 2.1\text{mm}$ Barrel Dimensions: Fully compatible with standard $12\text{V}$ AC-to-DC wall power adapters, battery holders, and desktop power supplies.

• Clear Polarity Markings: Molded positive ($+$) and negative ($-$) symbols on the PVC housing ensure safe, error-free wiring.

• Durable Construction: Built with heavy-duty PVC insulation strain relief and anti-corrosion nickel-plated contacts for long service life.

• High Current Capability: Handles up to $5\text{A}$ continuous current at up to $36\text{V DC}$, suitable for power-hungry LED strips and motors.

Technical Specifications

How to Use

1. Step-by-Step Wiring Assembly:

1. Prepare Wires: Strip approximately $5\text{mm}$ of insulation from your positive (red) and negative (black) power wires.

2. Loosen Screws: Use a small screwdriver to turn the terminal screws counter-clockwise to open the wire clamping pads.

3. Insert Wires with Correct Polarity:

   • Insert the Positive ($+$) wire into the terminal marked $+$.

   • Insert the Negative ($-$) wire into the terminal marked $-$.

4. Tighten Screws: Turn the terminal screws clockwise until the internal clamp securely grips the stripped wire ends.

5. Connect Barrel Plug: Plug the male connector directly into your device's female DC jack, or pair the male and female adapters together to extend a cable.

2. Connection Layout Schematic:

   [ 12V DC Adapter / Power Supply ]
                  |
                  v  (Male Plug 5.5x2.1mm)
       +----------------------+
       |  Female DC Jack Pad  |  <--- Female Adapter
       +----------+-----------+
                  |  (+) Red Wire   ----------------> To Load Positive (+)
                  |  (-) Black Wire ----------------> To Load Negative (-)
                  v
       +----------+-----------+
       |   Male DC Plug Pad   |  <--- Male Adapter
       +----------------------+
                  |
                  v  (Plugged into Device)
     [ LED Strip / CCTV Camera / Project Board ]

SAFETY ADVISORY: Always double-check polarity ($+$ and $-$) using a digital multimeter before connecting high-value electronics to avoid accidental reverse-polarity damage.

Applications

• CCTV & Security Systems: Wiring power connections for security cameras, DVR units, and IR illuminators.

• LED Strip Lighting: Connecting single-color (3528/5050/5630) or RGB LED light strips to $12\text{V}$ power supplies.

• DIY Electronics & Microcontrollers: Providing easy $12\text{V}$ power input/output ports for Arduino, ESP32, and Raspberry Pi projects.

• Power Supply Adaptation: Adapting bare wires from battery boxes, solar charge controllers, or step-down buck converters into standard barrel jacks.

Package Includes

• 1 x $5.5\text{mm}\times 2.1\text{mm}$ Male DC Power Jack Connector (Screw Terminal Type)

• 1 x $5.5\text{mm}\times 2.1\text{mm}$ Female DC Power Socket Connector (Screw Terminal Type)

Shipping & Delivery

• Free shipping on orders above ₹999 across India

• Dispatched within 1-3 business days

• Expected delivery: 3-7 business days depending on location

• Protective packaging for safe transit