PAM8403 5V 2 Channel Audio Amplifier Board

PAM8403 5V 2-Channel Audio Amplifier Board with Volume Control – Compact Stereo Power for DIY Audio Projects

Looking for a compact yet powerful stereo amplifier for your DIY speaker project? The PAM8403 5V 2-Channel Audio Amplifier Board is the perfect solution. Powered by a highly efficient PAM8403 chip, this board delivers crystal-clear audio at low voltage, making it ideal for small, portable sound systems, Bluetooth speakers, home audio, and embedded audio designs.

Available now at ElectroxBD.com – your trusted source for reliable electronic parts in Bangladesh.

🔌 Overview

The PAM8403 amplifier module is a low-voltage, high-efficiency Class-D stereo audio amplifier board that operates directly from a 5V DC supply. It can output up to 3W + 3W of stereo sound into a pair of 4Ω speakers—perfect for powering mini speaker setups, personal audio systems, and portable music devices. It features a built-in rotary volume control, screw terminals for easy speaker connection, and a small, breadboard-friendly form factor.

Its high signal-to-noise ratio, low total harmonic distortion, and efficiency of up to 90% make it a smart choice for any low-power audio application.

✅ Key Features

• Based on the PAM8403 Class-D audio amplifier IC

• Dual channel stereo output: 3W + 3W (at 4Ω, 5V)

• Built-in volume control knob

• Requires only a 5V DC power supply

• Compact PCB design – ideal for embedded and space-saving projects

• Low EMI, low THD+N, and high SNR

• No heat sink required under normal use

• Over-temperature and short-circuit protection included

• Easy-to-use terminal blocks for speakers and power

⚙️ 5 Key Technical Specs (Short)

1. Operating Voltage: 5V DC

2. Output Power: 3W per channel at 4Ω

3. Audio Channels: Stereo (2-channel output)

4. Volume Control: Onboard rotary knob

5. Board Size: Compact 3cm x 2cm PCB

🎯 Applications

This amplifier board is highly versatile and can be used in a wide range of audio applications, including:

• 🔊 DIY Bluetooth speakers

• 📻 Mini FM or MP3 player speaker output

• 🏠 Home automation voice/audio alerts

• 💡 Smart devices and embedded audio systems

• 🎮 Custom arcade cabinets or audio mods

• 🎓 Student electronics and audio amplifier experiments

Whether you’re a hobbyist or an engineer working on a consumer-grade audio device, this module gets the job done with minimal wiring and no programming required.

⚡ Energy Efficient Class-D Technology

The PAM8403 chip utilizes Class-D amplification, meaning it operates at high efficiency and produces very little heat. Even when operating continuously at full volume, the board does not require a heat sink, which reduces space and cost. This is particularly useful in battery-operated devices, allowing you to get more runtime from your power source.

🔧 Simple Connections, No Soldering Needed

The board features screw terminals for both speaker outputs and power input, making it easy to connect your components without needing to solder. It also includes a 3-pin input header (L, R, GND) for connecting an audio signal, which could be from a Bluetooth module, computer, mobile phone, or audio jack.

To use:

• Connect a 5V power supply (e.g., USB power or battery pack)

• Connect left and right channel speakers to the terminal blocks

• Feed audio signal to L/R/GND header

• Turn the onboard knob to control volume

That’s it — instant sound output with zero programming required!

🔐 Built-in Protection Features

Despite its size and simplicity, this module includes important protection mechanisms such as:

• Short-circuit protection

• Thermal shutdown

• Under-voltage lockout
  These features ensure your board is protected even under tough use conditions or incorrect connections.

🛒 Why Buy from ElectroXBD?

At ElectroxBD.com, we ensure all electronics are:

• ✅ 100% tested and quality-checked

• 🧰 Perfect for students, hobbyists, and engineers

• 🚚 Delivered fast across Bangladesh

• 📍 Based in Rajshahi – trusted by tech makers nationwide

• 💬 Supported by real humans via WhatsApp: 01600334238

When you buy from ElectroXBD, you’re not just getting a part — you’re getting trusted service, expert support, and fast delivery.

📦 Package Includes:

• 1 x PAM8403 5V 2-Channel Audio Amplifier Board with Volume Control
  (Speakers and power supply not included)

🏷️ Tags for SEO

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📌 Final Thoughts

The PAM8403 5V Stereo Amplifier Board is a must-have module for any small audio project. It offers great sound, easy connectivity, and energy efficiency, all packed into a tiny form factor. Whether you’re upgrading an old speaker or building your own audio system from scratch, this board will give you high-quality stereo output with minimal hassle.

👉 Order now from ElectroXBD.com and power up your next DIY sound project!

Common Questions:
Q: What is the price of PAM8403 5V 2 Channel Audio Amplifier Board in Bangladesh?
A: The latest price of PAM8403 5V 2 Channel Audio Amplifier Board in Bangladesh is 60 BDT.
Q: Where to buy PAM8403 5V 2 Channel Audio Amplifier Board in Bangladesh?
A: You can buy the PAM8403 5V 2 Channel Audio Amplifier Board at the best price from ElectroXBD in Bangladesh.