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🔹 PAM8403 Mini Audio Amplifier Module – 5V Dual Channel 3W+3W Stereo
The PAM8403 mini amplifier module is a compact and efficient Class D stereo amplifier capable of delivering 3W per channel at 5V. Ideal for portable speaker projects, Arduino-based sound systems, and DIY audio amplifiers.
✅ Specifications:
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IC: PAM8403
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Working Voltage: 2.5V to 5.5V (typical 5V)
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Output Power: 3W + 3W (stereo at 4Ω, 5V)
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Efficiency: Up to 90%
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Frequency Response: 20Hz – 20kHz
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Size: Approx. 21mm x 18mm x 3mm
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Type: Class D Audio Amplifier
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Channels: 2 (Stereo Left + Right)
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No heat sink required at normal volume
📦 Applications:
✔️ DIY Bluetooth speaker projects
✔️ Arduino and Raspberry Pi audio output
✔️ Portable music players
✔️ Intercoms and voice projects
✔️ General low-power amplifier needs


















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