---
product_id: 128975642
title: "5pcs Super Small Power Amplifier Board 3W+3W Type D PAM8403 Digital Audio Amplifier Power Amp Module 2.5V-5.5V Dual Channel High Efficiency 90% USB Powered"
brand: "fdit"
price: "50.64 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Fdit"
url: https://www.desertcart.tn/products/128975642-5pcs-super-small-power-amplifier-board-3w-3w-type-d
store_origin: TN
region: Tunisia
---

# 90% high efficiency 3W+3W dual channel output 2.5V-5.5V USB powered 5pcs Super Small Power Amplifier Board 3W+3W Type D PAM8403 Digital Audio Amplifier Power Amp Module 2.5V-5.5V Dual Channel High Efficiency 90% USB Powered

**Brand:** fdit
**Price:** 50.64 DT
**Availability:** ✅ In Stock

## Summary

> 🔊 Tiny Amp, Massive Impact: Power Your Sound Anywhere, Anytime!

## Quick Answers

- **What is this?** 5pcs Super Small Power Amplifier Board 3W+3W Type D PAM8403 Digital Audio Amplifier Power Amp Module 2.5V-5.5V Dual Channel High Efficiency 90% USB Powered by fdit
- **How much does it cost?** 50.64 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/128975642-5pcs-super-small-power-amplifier-board-3w-3w-type-d)

## Best For

- fdit enthusiasts

## Why This Product

- Trusted fdit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Protection:** Engineered with short circuit, overcurrent, and overtemperature safeguards for reliable, worry-free performance.
- • **Compact Powerhouse:** Mini PAM8403 board fits effortlessly into tight spaces for sleek, modern audio projects.
- • **Noise-Free Listening:** Built-in noise reduction ensures clean audio with zero hum or pop during power transitions.
- • **Plug & Play USB Power:** Easily powered by any 5V USB source—laptop, phone charger, or lithium battery for ultimate convenience.
- • **Efficient Amplification:** Delivers crisp 3W per channel with 90% efficiency, maximizing sound without overheating or bulky heat sinks.

## Overview

The 5pcs Super Small Power Amplifier Board PAM8403 is a compact, dual-channel digital amplifier delivering 3W per channel at 90% efficiency. USB powered (2.5V-5.5V), it fits perfectly in small devices, offers noise-free sound, and includes advanced protection features—ideal for DIY audio projects, portable speakers, and retro tech upgrades.

## Description

Features: PAM8403 mini type D digital power amplifier can be easily put in small space of many digital products, high amplification efficiency. It can be powered by computer USB 5V, or phone charger 5V, or lithium battery. High efficiency 90%, can provide 3W (left channel)+3W (right channel) when using 4Ω load and 5V power supply. Type D power amplifier has very high amplification efficiency, sound quality will not be effected by temperature rise, no need of heat sink. Build-in noise reduction circuit, no noise when power on/off, supports short circuit, over current and over temperature protection. Widely used for LCD TVs, monitors, laptops, portable speakers, DVD players, game players, phones. Specifications: Working Voltage: 2.5V-5.5V DC (should no over 5.5V, pay attention to polarity) Suitable Speaker: 4-8Ω (4Ω is recommended); speaker power 2-8W Size: 2.3*1.8cm/0.9*0.7in Quantity: 5pcs Weight: 2g(approx.) Package Includes: 5 x Power Amplifier

Review: Make sure you supply the correct voltage. - Excellent. Good for Retro projects that require sound amplification.
Review: Great for small audio projects. - Really simple. You can parallel the inputs to many of these IC with a pre-amp to drive lots of 3Watt 4ohm speakers and get decent sound volume. 1 x 18650 3500mAh lithium ion battery powers 2 units at the same time for 12watt pmpo for........drum rolll 3 days at mid volume. As these circuits run from 2.5-5.5 volts a li-po battery seemed perfect, if expenisve. They are REALLY efficient being a D type amplifier (85-90%) and draw 10's of milliamps @3.7v.

## Features

- 1PAM8403 mini type: PAM8403 mini type D digital power amplifier can be easily put in small space of many digital products, high amplification efficiency.
- 2USB 5V : It can be powered by computer USB 5V, or phone charger 5V, or lithium battery.
- 3High efficiency 90%: High efficiency 90%, can provide 3W (left channel)+3W (right channel) when using 4Ω load and 5V power supply.
- 4Type D power amplifier: Type D power amplifier has very high amplification efficiency, sound quality will not be effected by temperature rise, no need of heat sink.
- 5Build-in noise: Build-in noise reduction circuit, no noise when power on/off, supports short circuit, over current and over temperature protection.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P8Z3MRY |
| Best Sellers Rank | 21,733 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 113 in Hi-Fi Amplifiers |
| Brand | Fdit |
| Country Of Origin | China |
| Customer Reviews | 4.2 out of 5 stars 94 Reviews |
| Item Dimensions | 6 x 4 x 2 centimetres |
| Item dimensions L x W x H | 6 x 4 x 2 centimetres |
| Manufacturer | Fdit |
| Material | fr4 |
| Maximum Supply Voltage | 5.5 Volts (DC) |
| Maximum supply voltage | 5.5 Volts (DC) |
| Minimum Supply Voltage | 2.5 Volts (DC) |
| Minimum supply voltage | 2.5 Volts (DC) |
| Model Number | PAM8403 |
| Mounting Type | Surface Mount |
| Mounting type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 3 Watts |
| Package Type Name | small carton or envelope |
| UPC | 783335872589 |
| Voltage | 5.5 Volts (DC) |

## Product Details

- **Item dimensions L x W x H:** 6 x 4 x 2 centimetres
- **Voltage:** 5.5 Volts (DC)
- **Manufacturer:** Fdit
- **Maximum supply voltage:** 5.5 Volts (DC)
- **Minimum supply voltage:** 2.5 Volts (DC)

## Images

![5pcs Super Small Power Amplifier Board 3W+3W Type D PAM8403 Digital Audio Amplifier Power Amp Module 2.5V-5.5V Dual Channel High Efficiency 90% USB Powered - Image 1](https://m.media-amazon.com/images/I/71esf-MI+yL.jpg)

## Questions & Answers

**Q: Can I use it as a preamp with a diy BT module? I have an EPLZON BT from Amazon but the sound it gives to the amp is very poor.**
A: I would think so, they are not super quality sound but ok

## Customer Reviews

### ⭐⭐⭐⭐⭐ Make sure you supply the correct voltage.
*by J***S on 23 March 2025*

Excellent. Good for Retro projects that require sound amplification.

### ⭐⭐⭐⭐⭐ Great for small audio projects.
*by A***E on 13 July 2022*

Really simple. You can parallel the inputs to many of these IC with a pre-amp to drive lots of 3Watt 4ohm speakers and get decent sound volume. 1 x 18650 3500mAh lithium ion battery powers 2 units at the same time for 12watt pmpo for........drum rolll 3 days at mid volume. As these circuits run from 2.5-5.5 volts a li-po battery seemed perfect, if expenisve. They are REALLY efficient being a D type amplifier (85-90%) and draw 10's of milliamps @3.7v.

### ⭐⭐⭐⭐⭐ Tiny amplifiers great for all sorts of projects.
*by A***D on 12 April 2022*

Extremely small, and work on as little as 2.6v, however just be aware they did get rather warm on 5v, I find they work very well with no heat on 3.7v range, no audio clipping, you can also run a pot in line with the signal input to get volume control, But these are tiny, decent audio quality, perfect for getting audio into your projects.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-05-06*