The PAM8403 5V Mini Audio Amplifier Module is a digital Class D amplifier board built around the PAM8403 chip, with an onboard potentiometer for direct volume adjustment. It runs on 5V DC and delivers 3W of audio output into a speaker load. Efficiency exceeds 90%, so the pam8403 amplifier board stays cool during extended use without any heatsink. The onboard volume control knob separates this module from standard PAM8403 boards that require an external potentiometer.
Both left and right input signals mix internally before amplification. At 3W output, the 8403 amplifier board drives a small 4-ohm or 8-ohm speaker adequately at room volume but will not fill a large space. The filterless Class D output means speaker wire length should stay below 30cm to avoid RF interference pickup.
The pam8403 with volume control amplifier is popular among Indian makers for USB desktop speakers, portable radio builds, and Arduino audio output stages where manual volume adjustment is needed. The 5v audio amplifier board connects directly between any audio source and a small speaker with no additional components. StemVolt provide this PAM8403 5V Mini Audio Amplifier Module sourced for reliability clean audio amplification and seamless use in compact projects.
Related Product:
- Checkout CA-6928 V2 Bluetooth Audio Module
Features:
- Onboard potentiometer adjusts volume without any external control circuit needed
- Output power of 3W drives 4-ohm and 8-ohm speakers at room volume
- Single 5V DC supply works with USB chargers and power banks directly
- Mini module form factor suits portable audio and embedded speaker projects
Technical specifications:
| Specification | Details |
|---|---|
| Operating Voltage | 5V DC |
| Output Power | 3W |
| Amplifier Type | Digital Audio Amplifier |
| Control | Onboard Potentiometer |
| Form Factor | Mini Module |
| Usage | Portable audio projects |
| Efficiency | Above 90% |
Applications:
- Arduino MP3 player uses PAM8403 5V Mini Audio Amplifier Module as output stage
- USB desktop speaker build powers pam8403 amplifier board volume control from laptop
- Raspberry Pi audio system connects to pam8403 module for compact speaker output
Package Includes:
- 1 x PAM8403 5V Mini Audio Amplifier Module
Alok Maheshwari –
Perfect for IoT projects, offering stable performance, low power consumption, and easy integration.
Deepak Mantri –
Best deal for audio projects
Ashish Gupta –
Fast shipping service
Rakesh Soni –
Amplifier module delivered clear sound output and convenient volume control for compact audio systems.
Vinod Shringi –
Technical support was helpful, packaging was secure, and delivery was quick without any issues.
Nitin Vijay –
Product arrived intact