2 Pieces PAM8403 Mini 2 Channel Stereo 3W Class D Audio Power Amplifier Module Board

  • Sale
  • Regular price $3.69

This miniature PAM8403 3W Class D audio amplifier module offers low THD+N, allowing it to achieve high-quality sound reproduction, all in a form factor about the size of a US postage stamp!

It can be used in any DIY design requiring a miniature audio amplifier, especially portable and mobile applications operating on battery power.


  • Can use the computer USB port, USB power bank or a mobile phone charger to supply the 5V support power
  • Battery power can also be used
  • High efficiency: 90%
  • Can provide 3W (left channel) + 3W (right channel) output power into a 4Ω speaker load and 5V power supply
  • CMOS class D amplifier design for high efficiency and low cost
  • Noise canceling circuit built into the amplifier board
  • Power on / off without popping noise
  • Module has short-circuit current protection, under-voltage lockout and over-temperature protection (shuts down at an internal temperature of 140C +/- 15C)


  • Operating voltage: 2.5V-5.5V
  • Speaker Load: 4-8 Ohms
  • Size: 21 x 18 x 3.4 mm (L x W x H)
  • Net weight:1g

Package Contents:

  • 2x (2 Pieces) PAM8403 Class D Stereo Audio Power Amplifier Module
  • Specifications and usage instructions

Get it faster! We ship in 1 business day from our US facility in Colorado for quick delivery.

See the video review of this PAM8403 module by JohnAudioTech on Youtube: