12V 1A DC Power Adapter - High-Efficiency SMPS Wall Charger

Specification	Details
Input Voltage	100V - 240V AC (50/60 Hz)
Output Voltage	12V DC
Output Current	1.0 Ampere (Max)
Wattage	12 Watts
Technology	Switch Mode Power Supply (SMPS)
Connector Type	5.5mm x 2.1mm DC Barrel Plug

Price

₹ 84.75

(Tax included)

बारकोड: 907411

Product Description

The 12V 1A SMPS Power Adapter is a compact and highly efficient power solution designed for a wide range of electronic devices. Utilizing advanced Switch Mode Power Supply (SMPS) technology, this adapter converts high-voltage AC mains into a stable, regulated 12V DC output. Its lightweight, wall-mount design makes it a versatile choice for powering WiFi routers, modems, LED strips, CCTV cameras, and various DIY microcontroller projects. The integrated circuitry is engineered to maintain a steady voltage even during minor fluctuations in the input power line, ensuring the safety and longevity of your connected equipment.

Key Features

Regulated DC Output: Provides a consistent 12V signal with low ripple noise, protecting sensitive digital components from power instability.
Energy Efficient: SMPS technology ensures high energy conversion rates with minimal heat dissipation compared to traditional linear transformers.
Compact Wall-Plug Design: Small form factor allows it to fit easily into standard power strips without blocking adjacent sockets.
Built-in Safety Protections: Features automatic safeguards against over-voltage, over-current, and short circuits for secure daily operation.
Universal AC Input: Supports a wide input range (100V to 240V), making it resilient against the voltage sags and surges common in domestic power grids.

Technical Details

Polarity: Center Positive (+).
Casing: Durable, flame-retardant ABS plastic housing.
Cable Length: Typically 1 to 1.2 meters for flexible placement.

Prototyping and Engineering Tips from Robogears

The 80% Load Rule: For mission-critical or 24/7 applications (like a security camera or 24/7 IoT gateway), we recommend the 80% rule. Aim to keep your continuous current draw around 0.8A. This prevents internal heat buildup and preserves the life of the electrolytic capacitors.
Stabilizing Sensor Data: If you are using this to power an Arduino or ESP32 that is reading analog sensors, the quality of the adapter matters. A stable SMPS like this reduces the "jitter" in your sensor readings compared to a low-quality or underpowered mobile charger.
Polarity Verification: Always confirm that your device requires "Center Positive" polarity. While the 5.5mm x 2.1mm plug is the industry standard for 12V electronics, connecting it to a center-negative device will result in immediate hardware failure.
Voltage Drop over Distance: If you are extending the DC cable significantly, use 20AWG or 18AWG wire. Using thin "bell wire" for long distances will cause a voltage drop, meaning your 12V device might only receive 10V or 11V, leading to erratic reboots or signal loss.

Package Includes

1 x 12V 1A SMPS Power Adapter

Disclaimer: Intended for indoor use only. Ensure your device's total power requirement does not exceed 12V 1A (12 Watts). Do not use the adapter if the housing shows signs of cracking or the cable is frayed. Always unplug from the AC source when performing maintenance on your project.