5.5mm DC Female Power Jack (Panel/PCB)

11.00৳

Product details

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Description

The 5.5mm DC Female Power Jack Socket is a connector used in electronics. It is often paired with 2.1mm or 2.5mm center pins. This connector is a standard for sending low-voltage DC power into electronic enclosures, development boards and commercial hardware.

It comes in two types: threaded panel-mount versions like the DC-022 and through-hole PCB-mount versions like the DC-005. These designs ensure a dependable connection. The connector works with wall adapters, external battery packs and benchtop DC power supplies. It’s a trusted choice, for keeping power flowing where its needed.

Key Features and Benefits

Universal Standard Compatibility: Works with standard 5.5mm outer diameter male barrel plugs. These plugs come in both 2.1mm and 2.5mm inner diameter center pins.
Multiple Mounting Options:
Panel Mount: Has a threaded chassis with a hex nut and washer. This makes it easy to install on the front or back of an enclosure.
PCB Mount: Has a 3-pin through-hole footprint. This allows it to be soldered directly onto printed circuit boards.
Integrated Shunt / Cut-off Switch: Has a normally-closed mechanical switch. This switch turns off the battery power automatically whenever an external DC adapter is plugged in.
Durable Nickel-Plated Contacts: Uses copper alloy contacts, with nickel plating. This gives electrical conductivity, low contact resistance and long life when plugged in and out.
Robust Flame-Retardant Casing: Made with high-temperature plastic (PBT/Nylon). This casing resists warping during hand soldering or wave soldering.

General Specification

Plug/Socket Type Standard	5.5 mm Outer x 2.1 mm Inner Diameter Barrel Style
Total Pin Configuration	3 Pins (Pin 1: Center Pin; Pin 2: Shunt Spring; Pin 3: Outer Sleeve Ground)
Maximum Rated Power Load	DC 30V / 1.0A Continuous Limits
Contact Resistance	≤ 0.03 Ω max deviation
Dielectric Voltage Isolation	AC 500V (50Hz) / Minute threshold limits
Ambient Operating Boundary	-30°C to +70°C
Component Shipment Weight	0.005 kg
Outer Module Boundaries	3 cm x 3 cm x 3 cm (Packaging Cube)

Pinout Configuration (Standard 3-Pin)

Pin 1 (Center Pin) connects to the pin of the plug which is usually the DC Positive or +VCC in systems that use center-positive connectors. I use Pin 1 to feed power into my circuit.
Pin 2 (Outer Sleeve / Shunt) is a spring contact that holds the sleeve of the plug and it is normally the DC Ground or GND. I rely on Pin 2 for the ground reference.
Pin 3 (Switch Contact) is a closed switch that is connected to Pin 2 when no plug is inserted. When a barrel plug is inserted the switch opens automatically to cut off the battery power. I find Pin 3 for isolating the battery when an external supply is present.

Common Applications

DIY Microcontroller Boards: These pins provide the power input for Arduino boards Raspberry Pi setups and ESP32 project boxes. I use this setup to power my hobby projects.
Audio & Consumer Electronics: They serve as the power inlet for desktop amplifiers, DACs, Bluetooth speaker enclosures and LED strip controllers. I enjoy using this arrangement to run my gear.
Robotics & Automation: They connect 12V or 24V battery packs and regulated switch‑mode power supplies (SMPS). I have used this to power my robot chassis.
Test Gear: They are used as the input, for benchtop power supplies, custom sensor housings and signal generator boxes. I rely on this for lab equipment.