5V 1 A Power Supply SMPS Adaptor

Specifications

• Input Voltage: 100-240V AC, 50/60Hz (Universal World Standard)
• Output Voltage: 5V DC (Regulated)
• Max Output Current: 1A (1000mA)
• Connector Type: 5.5mm Outer Diameter / 2.1mm Inner Diameter Male Barrel Jack
• Polarity: Center Positive (+), Outer Negative (-)
• Technology: SMPS (Switch Mode Power Supply)
• Cable Length: ~1 Meter
• Working Temperature: -10°C to +50°C

Applications

• Microcontroller Power: Perfectly sized to power Arduino Uno, Mega, and Nano boards via the barrel jack.
• IoT Devices: Reliable 24/7 power for ESP8266 and ESP32 nodes (requires 5V input).
• LED Lighting: Drivers for small 5V LED strips or matrix displays (under 1A total draw).
• Robotics: Powering servo drivers and logic circuits separately from high-current motors.
• Home Automation: Ideal for custom sensor hubs that need to run continuously without battery swaps.

Unlock New Capabilities

      Concept: From Batteries to "Always-On"

• Past Projects (The Prerequisite): You've likely built a temperature monitor or a small robot powered by a 9V battery. You noticed the system dies after a few hours, or the readings get wonky as the battery fades.
• Feature Upgrade (The Unlock): By switching to this 5V 1A SMPS, you unlock Permanent Installation. Your projects can now run indefinitely. This allows you to build always-on Web Servers, Wi-Fi Repeaters, or Home Security nodes that never sleep.
• Effort Level: Beginner. No coding required—just plug and play.
• Requirements: A standard wall socket and a device with a matching DC jack (or a female adapter).

Package Includes:

• 1 x 5V 1 A Power Supply SMPS Adaptor

Note: This adapter model varies with stock and may not be same as the photo displayed. If you are looking for a specific model, please contact us and we will help you with it. We also sell a compatible female connector to plug into this adapter.

Frequently Asked Questions (FAQ)

• Can I use this 5V 1A adapter for my Arduino Uno?
  Yes, absolutely. The Arduino Uno has an onboard regulator and a barrel jack designed to accept external power. While it can take higher voltages, feeding it regulated 5V (via the 5V pin) or slightly higher via the jack is safe for many clones, though the recommended jack voltage is usually 7-12V. For direct 5V pin usage, ensure the voltage is stable.
• Will this work with the Raspberry Pi?
  It can power older models like the Pi Zero or Pi 1. However, for a Raspberry Pi 3 or 4, we recommend a 2.5A or 3A supply. 1A is generally insufficient for modern Pis under load.
• What happens if my project only needs 0.5A?
  That is perfectly fine. The "1A" rating is the maximum capacity. Your device will only draw the current it needs (0.5A), and the power supply runs cooler.
• Is the polarity Center Positive?
  Yes, this adapter follows the industry standard Center Positive configuration.
• Can I cut the connector off to use the bare wires?
  Yes, you can. Typically, the wire with a stripe or dashed line is Positive, but we strongly recommend verifying with a multimeter before connecting to your circuit.
• Does this adapter have short-circuit protection?
  Most modern SMPS units have basic short-circuit protection, but it is not intended for repeated shorting. Always check your wiring before plugging it in.
• Can I charge a 3.7V Li-Po battery directly with this?
  No. You must use a dedicated Li-Po charger module (like TP4056) between this power supply and the battery. Connecting 5V directly to a raw lithium battery is dangerous.
• Is this suitable for running a servo motor?
  Yes, for small servos like the SG90 (Micro Servo). Larger servos or high-torque motors may draw more than 1A at stall current, potentially shutting down the adapter.
• Can I use this to power LED strips?
  Yes, as long as the total current draw of the LEDs does not exceed 1A. Roughly, that is about 1 meter of standard 60 LED/m strip, but always check the strip's datasheet.
• What is the cable length?
  The cable is approximately 1 meter long, giving you decent reach from the wall socket to your workbench.
• Does it work with 110V AC (US Standard)?
  Yes, the input range is 100-240V AC, so it works globally with the appropriate travel plug adapter for the physical pins.
•  Is this a regulated power supply?
  Yes, this is an SMPS (Switch Mode Power Supply), which provides a regulated 5V output compared to unregulated, heavy transformer-based adapters.