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  4. 12V 3A DC Adapter High-Quality Power Supply NetGear
  5. 🔌 AC To DC SMPS & Adapters
मूल्य सूची: Retail Price (B2C) मूल्य सूची
मूल्य सूची: Retail Price (B2C) मूल्य सूची
12V 3A DC Adapter High-Quality Power Supply NetGear

12V 3A DC Adapter High-Quality Power Supply NetGear

SpecificationDetails
Product TypeAC to DC Switching Power Adapter
BrandNetGear
Input Voltage100–240V AC
Input Frequency50/60Hz
Output Voltage12V DC
Output Current3A Maximum
Rated Power36W
Connector5.5mm × 2.1mm DC Barrel Plug
PolarityCenter Positive (+)
TechnologySwitch Mode Power Supply (SMPS)
DesignCompact Wall-Plug Type
Cable LengthApprox. 1–1.2m
CoolingPassive / Natural Cooling
ApplicationsCCTV, LED lighting, routers/network equipment, displays, electronics & DIY projects
Input TypeAC wall plug
WeightApprox. 250–350g*
                                 Price

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₹ 279.66 ₹ 279.66
(Tax included)

बारकोड: 3998827

Product Description

The 12V 3A Power Adapter is a reliable and efficient Switch Mode Power Supply (SMPS) designed to provide a constant 12V DC output for a variety of electronic devices. With a 3-Ampere capacity, this adapter is a versatile middle-ground power solution, offering more current than standard 1A or 2A units while remaining compact and portable. It is widely used for powering LED strips, CCTV cameras, LCD monitors, and mid-range DIY robotics projects. The universal AC input range ensures it functions safely across different regional power grids.

Key Features

  • Stable Power Delivery: Engineered to maintain a precise 12V output with minimal ripple, ensuring the longevity of your sensitive electronic components.

  • Compact Wall-Plug Design: Small footprint allows it to fit into standard power strips without obstructing adjacent outlets.

  • Integrated Safety Protections: Features built-in safeguards against short circuits, over-voltage, and over-current to prevent damage to your devices.

  • Universal AC Input: Supports a wide input range (100V to 240V), making it suitable for use in diverse electrical environments.

  • Durable Outer Shell: Housed in high-grade, heat-resistant plastic for safe operation and physical protection of internal circuitry.

Technical Details

  • Cable Length: Typically 1 to 1.2 meters.

  • Polarity: Center Positive (+).

  • Efficiency: High energy conversion with low standby power consumption.

Prototyping and Engineering Tips from Robogears

  • The 80% Performance Rule: For continuous 24/7 operation, it is a best practice to limit the steady load to 2.4A (80% of the 3A rating). This reduces internal heat buildup and significantly extends the life of the adapter's electrolytic capacitors.

  • Polarity Verification: Always confirm that your device is "Center Positive." Connecting this adapter to a "Center Negative" device (common in some vintage electronics and specialized audio gear) can cause immediate and permanent hardware failure.

  • Voltage Drop over Distance: If you are extending the DC wire to reach a distant sensor or motor, use a thicker gauge wire. Standard thin extensions will cause a "voltage drop," meaning your device may receive only 11V or less, which can cause erratic behavior in microcontrollers.

  • Filtering for Motors: When using this adapter to power DC motors, the "electrical noise" from the motor brushes can travel back into the adapter. Adding a 1000uF electrolytic capacitor across the power rails of your project will help smooth out these spikes and keep the power delivery clean.

Package Includes

  • 1 x 12V 3A DC Power Adapter

Disclaimer: Intended for indoor use only. Ensure the power requirements of your connected device do not exceed 12V 3A. Do not use the adapter if the casing or cable shows any signs of physical damage.

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