PAM8403 Mini 5V 3W+3W Stereo Audio Amplifier Module
The PAM8403 Mini 5V Stereo Audio Amplifier Module is a compact Class-D amplifier board designed to drive two small speakers. It can provide up to 3W + 3W stereo output at 5V with 4Ω speakers and operates from approximately 2.5V–5.5V DC. Electron Components Its compact design makes it suitable for Arduino, ESP32, Raspberry Pi, robotics, Bluetooth speakers, portable audio systems and DIY electronics projects. The common version includes a potentiometer for volume control and an integrated power switch.
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| Amplifier IC | PAM8403 |
|---|---|
| Amplifier Type | Class-D |
| Channels | 2-Channel Stereo |
| Operating Voltage | 2.5–5.5V DC |
| Recommended Voltage | 5V |
| Output Power | 3W + 3W |
| Speaker Impedance | 4–8Ω |
| Efficiency | Up to 90% |
| Control | Volume Potentiometer |
| Power Switch | Integrated* |
| Power Filter Capacitor | 470µF* |
| Protection | Short-Circuit & Thermal Protection* |
| Frequency Response | Approx. 20Hz–20kHz* |
| Dimensions | Approx. 30 × 20mm* |
| Applications | Arduino, ESP32, Robotics, DIY Audio, Portable Speakers |
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