1-100PCS PAM8403 Super Mini Digital Amplifier Board 2 * 3W Class D Digital Amplifier Board Efficient 2.5 To 5V USB Power Supply
1.76$
1.76$
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PAM8403 mini D digital amplifier board
1. Operating voltage: 2.5V-5.5V. Note: The power supply voltage should not exceed 5.5V, the positive and negative power supply should not be reversed.
2. Speaker with: 4-8 Europe, Recommended: 4 Europe; Speaker power: 2-8W.
3. You can use the computer USB port 5V power supply, or use mobile phone charger USB port 5V power supply, you can also use lithium battery power.
4. High efficiency 90%, 4Ω load and 5V power supply conditions, can provide 3W (left channel) +3 W (right channel) output power. Class A, Class B and other power amplifier efficiency is only about 30%, Class D power amplifier in today's green trend under the highly respected.
5. Class D amplifier efficiency is very high, will not affect the sound quality because of temperature rise, and do not add heat sink, the volume is very small.
application:
LCD TV, monitor
laptop
Portable speakers
Portable DVD players, game consoles
Phone / speakerphone
Precautions for use:
First connected to the speaker and then turn on the power, or easy to damage the chip;
Since the digital volume control in the module has a large gain, do not allow the audio signal input to be too large for the signal to produce a cut limit.
Wiring diagram:
Customer Reviews
23 ratings
fast delivery (1)
safe delivery (1)
affordable price (1)
excellent quality (1)
incorrect item (1)
Customer photos (4)
Buyer from Peru
October 1, 2026
Variant: Color:50PCS Ships From:China Mainland
The item I ordered is not the one that arrived; I ordered a mini digital amplifier and a soldering iron arrived instead. I think there was a mistake.
Translated by AliExpress ·
Buyer from Colombia
September 9, 2026
Variant: Color:100PCS Ships From:China Mainland
It arrived super fast
Translated by AliExpress ·
Buyer from Mexico
September 5, 2026
Variant: Color:50PCS Ships From:China Mainland
Excellent product at an affordable price
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N***r
August 26, 2026
Variant: Color:10PCS Ships From:China Mainland
The mini Amp is very loud. I recommend it
Buyer from Brazil
July 31, 2026
Variant: Color:100PCS Ships From:China Mainland
It arrived safely.
Translated by AliExpress ·
1-100PCS PAM8403 Super Mini Digital Amplifier Board 2 * 3W Class D Digital Amplifier Board Efficient 2.5 To 5V USB Power Supply
1.76$
1.76$
Quantity:
1
Availability:
Color
Ships From
