Skip to Content
โ˜… 4.9โ˜… Rated by 750+ Customers on Google
๐Ÿš€ Startup India Recognized Company
๐Ÿšš Pan India Delivery via Trusted Courier Partners
๐Ÿฌ Only Physical + Online Robotics Store in Pimpri
๐ŸŽ“ Trusted by Engineering Students, Makers & Innovators Across India
โ˜… 4.9โ˜… Rated by 750+ Customers on Google
๐Ÿš€ Startup India Recognized Company
๐Ÿšš Pan India Delivery via Trusted Courier Partners
๐Ÿฌ Only Physical + Online Robotics Store in Pimpri
๐ŸŽ“ Trusted by Engineering Students, Makers & Innovators Across India
  1. All products
  2. โšก Power & Management
  3. ๐Ÿ”Œ AC To DC SMPS & Adapters
  4. 8V 3A AC/DC Adaptor Power Supply
  5. ๐Ÿ”Œ AC To DC SMPS & Adapters
Pricelist: Retail Price (B2C) Pricelist
Pricelist: Retail Price (B2C) Pricelist
8V 3A AC/DC Adaptor Power Supply

8V 3A AC/DC Adaptor Power Supply


SpecificationDetails
Input Voltage100V - 240V AC (50/60Hz)
Output Voltage8V DC
Output Current3A (3000mA) Max
Power Output24 Watts
Connector TypeDC Barrel Jack (5.5mm x 2.1mm)
PolarityCenter Positive (+)
                                 Price

๐Ÿšš Ships within 24 Hours
๐Ÿ“ฆ Pan India Delivery
โ‚นย 661.02 โ‚นย 661.02
(Tax included)

Barcode: 2829194

Product Description

The 8V 3A AC/DC Adaptor Power Supply is a high-capacity switching mode power supply (SMPS) designed for devices that require a specific 8-volt input with significant current overhead. Delivering a full 3 Amperes, this adapter is ideal for high-torque hobbyist motors, thermal printers, specialized LED arrays, and communication equipment that standard 5V or 12V adapters cannot support. The wide AC input range makes it globally compatible, while the regulated DC output ensures your sensitive electronics are protected from voltage fluctuations. Built with a standard 5.5mm barrel jack, it integrates seamlessly into breadboard power modules and DC-in sockets common in the robotics and DIY electronics community.

Key Features

  • High-Current 3A Output: Provides ample power for multiple 8V components running simultaneously, preventing "brown-outs" or system resets during peak loads.

  • Efficient SMPS Design: Advanced switching technology provides high energy efficiency and low heat generation compared to traditional linear power bricks.

  • Precision 8V Regulation: Maintains a steady 8V output even under heavy load, essential for the longevity of components sensitive to over-voltage.

  • Universal 5.5mm Plug: Fits the industry-standard 2.1mm internal pin diameter, ensuring a snug and secure connection with most electronic hardware.

  • Built-in Safety Circuitry: Features automatic short-circuit, over-current, and over-voltage protection to safeguard your connected devices.

Technical Details

  • Efficiency Level: VI.

  • Cable Length: ~1 Meter.

  • Indication: Power-on LED indicator (Standard on most models).

Prototyping and Engineering Tips from Robogears

  • The "Niche" 8V Requirement: CRITICAL: Most development boards are 5V (USB) or 9V-12V (Barrel Jack). If you are using this with an Arduino, the 8V input is actually more efficient than a 12V input because the onboard regulator has to dissipate less heat to reach 5V.

  • Current "Headroom" Advantage: Using a 3A adapter for a device that only draws 1A is perfectly safe. The device will only "take" the current it needs, and the adapter will run much cooler, significantly extending its operational life.

  • Polarity Check: While almost all modern DC barrel jacks are Center Positive, always verify the diagram on your device. Plugging a Center Positive adapter into a Center Negative device can cause immediate, irreversible damage to the motherboard.

  • Motor Applications: If using this to power DC motors, remember that motors create "back EMF" (electrical noise). We recommend adding a 1000ยตF 16V electrolytic capacitor across the power rails near the motor to smooth out current spikes.

  • Extension Cautions: If you need to extend the DC cable, use high-gauge copper wire (at least 18 AWG). Using thin jumper wires over a long distance will cause a "voltage drop," meaning your 8V adapter might only provide 7V to the device by the time it reaches the end of the wire.

Package Includes

  • 1 x 8V 3A AC/DC Adaptor Power Supply

Disclaimer: Indoor use only. Do not expose the power supply to direct sunlight or moisture. Ensure the total current draw of your project does not exceed 3000mA. Always disconnect the adapter from the AC mains when performing any wiring changes on your project.

๐Ÿ”’
Secure Payment
100% Safe & Encrypted
๐Ÿšš
Dispatch in 24 Hours
Fast Order Processing
โญ
4.9โ˜… Google Rating
Rated by 750+ Customers
๐Ÿ‡ฎ๐Ÿ‡ณ
Pan India Delivery
Startup India Recognized Company

Trusted by thousands of students and engineers across India

โ˜…โ˜…โ˜…โ˜…โ˜… Rated 4.9/5 by 750+ customers on Google
โ˜…โ˜…โ˜…โ˜…โ˜…

Best place I discovered recently. Got all my components and the staff is also very good and polite.

โ€” Swayam Thorat

โ˜…โ˜…โ˜…โ˜…โ˜…

Good with you can get whatever you want at low price.

โ€” Ganesh Deshmukh

โ˜…โ˜…โ˜…โ˜…โ˜…

Shopping for innovative components is always a pleasure here. The staff is knowledgeable and eager to help. Prices are very fair.

โ€” Papai Das

โ˜…โ˜…โ˜…โ˜…โ˜…

I love the STEM kits they offer for students. It's a great way to inspire young minds and promote creativity. The staff is supportive and knowledgeable.

โ€” Ayush Chauhan

โ˜…โ˜…โ˜…โ˜…โ˜…

Great experience shopping here. Good product selection and excellent customer support.

โ€” Rahul Sonawane

โ˜…โ˜…โ˜…โ˜…โ˜…

Wide range of robotics and electronics components available. Perfect place for project requirements and learning kits.

โ€” Verified Google Customer

โ˜…โ˜…โ˜…โ˜…โ˜…

Excellent service, genuine products and quick support. Highly recommended for students, hobbyists and engineers.

โ€” Verified Google Customer