SmartElex PAM8403 5V Two-Channel Stereo Mini Class-D Audio Amplifier
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The SmartElex PAM8403 5V Two-Channel Stereo Mini Class-D Audio Amplifier is a compact audio amplification module designed to deliver clear and efficient stereo sound from low-power audio sources. It solves the need for adding audio output to small electronic projects without bulky components or complex circuits. This module is suitable for students, makers, engineers, educators, and startups who want an easy way to integrate stereo audio into DIY electronics, learning kits, and embedded system prototypes.
This stereo mini Class-D audio amplifier is commonly used in robotics, IoT devices, automation systems, and portable electronics that require lightweight and power-efficient audio output. It can be easily interfaced with platforms such as Arduino, Raspberry Pi, and ESP32 to drive small speakers in projects like voice alerts, sound feedback systems, and interactive devices. The simple design and stable performance make it easy to integrate into both prototype builds and finished products, enabling reliable audio output with minimal setup effort.
| Item Type | Amplifier |
| Model | Audio Amplifier |
| Model No. | PAM8403 |
| Output Power (W) | Up to 3 + 3 (at 4Ω load, 5V supply) |
| Operating Voltage (VDC) | 2.5 to 5.5 |
| No. of Channels | 2 |
| Amplifier IC | PAM8403 (Class-D, Stereo) |
| Efficiency | Up to 70% |
| Load Impedance | 4Ω–8Ω compatible speakers |
| Distortion | <10% |
| Length (mm) | 23 |
| Width (mm) | 14 |
| Weight (g) | 3 |
This item is covered with a supplier warranty of 1 year from the time of delivery against manufacturing defects only.
In case of manufacturing defects or issues, we will replace the part after warranty confirmation by our technical team, but we won’t offer refunds or replace the entire product.
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