PAM8403 Audio Amplifier Module
The PAM8403 Audio Amplifier Module is a compact Class-D stereo audio amplifier board designed to amplify low-level audio signals and drive small speakers efficiently. Based on the PAM8403 amplifier IC, this module provides high-quality audio output with low power consumption and supports direct speaker connection without requiring bulky output filters. Available at Directronics, the PAM8403 Audio Amplifier Module is ideal for students, hobbyists, makers, educators, and professional engineers working on Arduino, ESP32, Raspberry Pi, Bluetooth speakers, MP3 players, and portable audio projects.
Features:
• Based on PAM8403 Class-D Audio Amplifier IC
• Dual Channel Stereo Audio Output
• Provides 3W + 3W Audio Output (Typical)
• Low Power Consumption and High Efficiency
• Supports 4Ω and 8Ω Small Speakers
• Filterless Amplifier Design
• Low Noise Audio Performance
• Built-In Short Circuit Protection
• Thermal Shutdown Protection
• Compact and Lightweight PCB Design
• Simple Audio Input and Speaker Output Interface
• Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, MP3 Player Modules, and Other Audio Sources
• Suitable for Portable Audio Applications
Why Choose PAM8403 Audio Amplifier Module?
• Provides clear and powerful audio amplification in a small size
• Easy integration with microcontrollers and audio modules
• Efficient Class-D design helps reduce power consumption
• Suitable for battery-powered audio projects
• Eliminates the need for complex amplifier circuits
• Ideal for beginners, students, and professional developers
Applications:
• DIY Bluetooth Speaker Projects
• Arduino Audio Projects
• Raspberry Pi Sound Systems
• MP3 Player Applications
• Portable Speaker Systems
• Voice Announcement Projects
• Robotics Sound Output
• IoT Audio Notification Systems
• Embedded Audio Applications
• Educational Electronics Projects
Technical Specifications:
• Product Type: Stereo Audio Amplifier Module
• Amplifier IC: PAM8403
• Amplifier Class: Class-D
• Channel Output: Stereo (2 Channels)
• Output Power: 3W + 3W @ 4Ω Speaker (Typical)
• Operating Voltage: 2.5V–5.5V DC
• Recommended Supply Voltage: 5V DC
• Efficiency: Up to 90% (Typical)
• Frequency Response: Model Dependent
• Audio Input: Left Channel / Right Channel
• Speaker Output: L+, L-, R+, R-
• Gain: Approximately 24dB (Typical)
• Protection: Short Circuit and Thermal Shutdown
• Operating Temperature: -40°C to +85°C (Typical)
Package Includes:
• 1 × PAM8403 Audio Amplifier Module
Related Products:
8 Ohm Speaker
DFPlayer Mini MP3 Player Module
Arduino Uno
Arduino Nano
ESP32 Development Board
ESP8266 NodeMCU Development Board
Raspberry Pi Development Board
Micro SD Card Reader Module
Jumper Wires and Breadboards
Why Buy from Directronics?
Directronics provides quality development boards, communication modules, sensors, electronic components, robotics modules, audio solutions, and IoT products for students, makers, educational institutions, startups, and industry professionals. Explore our complete range of Arduino, ESP32, ESP8266, Raspberry Pi, audio modules, programming tools, and embedded development products to bring your ideas to life.
Note:
Product images are for illustration purposes only. Please review the amplifier voltage requirements, speaker impedance, wiring configuration, and audio input specifications before placing your order. Avoid exceeding the recommended supply voltage to prevent damage to the module.