PAM8403 Mini Digital Audio Amplifier Module HW-104 – 2x3W Stereo 5V

The PAM8403 Mini Digital Audio Amplifier Module (HW-104) is a compact, efficient Class-D stereo amplifier board based on the PAM8403 IC. It delivers 2x3W output power at 5V with very low heat generation and no need for a heatsink — perfect for portable audio projects.

• IC Chip: PAM8403
• Model: HW-104
• Output Power: 2 x 3W (stereo)
• Supply Voltage: 5V DC (USB or battery)
• Input: Left (L) and Right (R) audio channels + GND
• Output: Left and Right speaker terminals
• Efficiency: Up to 90% (Class-D)
• SNR: 80dB
• THD: <0.1% at 1W output
• Dimensions: ~38mm x 38mm
• No heatsink required

Ideal for DIY Bluetooth speakers, Arduino audio projects, Raspberry Pi sound systems, and portable amplifier builds. Simply connect a 3.5mm audio source, 5V power, and two small speakers to get started!

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