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5V 2A AC to DC Power Supply Adapter (5.5mm x 2.1mm Barrel Jack)

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When you move your project off the breadboard and away from your computer's USB port, you need a dedicated power source that will not let you down. This standard AC to DC power adapter takes fluctuating wall power and cleanly converts it into a highly stable 5-Volt DC output. Designed with efficiency and simplicity in mind, it acts as the primary lifeblood for a massive variety of household and hobbyist electronics.

Equipped with the universally recognized 5.5mm by 2.1mm center-positive barrel plug, this adapter is essentially plug-and-play for most development boards and small network devices. Capable of delivering up to 2 full Amps of continuous current, it offers more than enough overhead to supply power-hungry Wi-Fi modules, compact displays, and sensor arrays without experiencing the voltage sag that causes microcontrollers to randomly reset.

Key Features & Functional Advantages

  • Universal Input Voltage: Readily accepts AC wall power ranging from 100 Volts to 240 Volts, making it functional worldwide without needing a step-down transformer.

  • Standardized Connector: Features the industry-standard 5.5mm outer diameter and 2.1mm inner diameter DC barrel jack, ensuring instant compatibility with countless consumer electronics.

  • Center-Positive Polarity: Wired in the modern standard configuration where the inner tip of the plug carries the positive voltage, protecting standard devices from reverse-polarity damage.

  • Clean Power Delivery: Utilizes internal switching technology to provide a smooth, regulated 5-Volt output that keeps sensitive digital logic chips perfectly stable.

  • Built-in Protections: Engineered with internal safeguards against short circuits, over-current draws, and over-heating, preventing damage to both the adapter and your connected electronics.

Perfect For

  • Microcontroller Development: Providing dedicated wall power to Arduino development boards and custom logic circuits that feature a built-in barrel jack.

  • IoT Hardware: Supplying the robust current overhead required when wireless modules (like the ESP32 or ESP8266) transmit data and cause sudden power spikes.

  • LED Lighting: Powering short runs of 5-Volt addressable LED strips for custom lighting installations.

  • Network & AV Peripherals: Serving as a reliable replacement power supply for network switches, HDMI splitters, and small digital-to-analog audio converters.

Technical Specifications

  • Device Type: AC to DC Wall Power Supply

  • Input Voltage: 100 Volts to 240 Volts AC (50/60 Hertz)

  • Output Voltage: 5.0 Volts DC

  • Maximum Output Current: 2.0 Amps (2000 milliamps)

  • Maximum Output Power: 10 Watts

  • Connector Type: 5.5mm x 2.1mm DC Barrel Plug

  • Polarity: Center-Positive

Ensure your order is placed by 2PM to guarantee next-day delivery! Our commitment to prompt service includes a 24-hour delivery system through our network of carriers, aimed at ensuring your package arrives right on schedule.

Please note, a delivery fee of €4.99 applies for orders under €50. For those in remote areas, be aware that our couriers may apply an extra surcharge. This additional fee helps cover the costs of transporting your items to harder-to-reach locations.