10 PCS PAM8403 Super Mini Digital Amplifier Board Module

This compact digital power amplifier board is designed for integration into space-constrained electronic projects. It delivers clear stereo audio output while supporting direct USB power connections. 1. Physical dimensions measure 21 x 18 x 3.4mm in length, width, and height, housed in a green ABS frame. 2. The rated operating voltage ranges from 2.5V to 5V with a maximum limit of 5.5V, providing 3W+3W output for 4Ω or 8Ω speakers. 3. A Class D architecture with double-sided circuitry and an LC filter minimizes channel crosstalk and eliminates background noise during silent operation. 4. The package includes ten digital power amplifier boards. 5. Typical applications involve battery-powered portable gadgets and DIY electronics requiring a miniature audio amplification module.