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5V DC Mini Class D Pam8403 USB Power Amplifier Board

5V DC Mini Class D Pam8403 USB Power Amplifier Board

Regular price Rs. 43
Regular price Rs. 59 Sale price Rs. 43
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  • 3W Output at 10% THD with a 4Ω Load and 5V Power Supply 
  • Filterless, Low Quiescent Current and Low EMI
  • Superior Low Noise 
  • Efficiency up to 90% 
  • Short Circuit Protection 
  • It is designed for Bluetooth audio receiver module dedicated interface.

5V DC Mini Class D Pam8403 USB Power Amplifier Board

The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of Class-AB cousins.

The PAM8403 audio amplifier can extend the battery life, which makes it well-suited for portable applications. The board uses the typical circuit design of PAM8403, using MICRO USB power supply (reserved wire power interface), it is easy to use a universal mobile phone charger for its power supply, resistance devices are standardized patch technology, simple and stable.


  • LCD Monitors / TV Projectors
  • Notebook Computers
  • Portable Speakers
  • Portable DVD Players, Game Machines
  • Cellular Phones/Speaker Phones

Also check the PAM8610 Digital Amplifier Board available on Robocraze. It is a 15W per channel stereo Class-D audio amplifier with DC Volume Control. The working mode is Class D (PWM modulation type), and it features a switch function that, when shorted, will close the amplifier.

Package Includes:

  • 1 x Pam8403 USB Power Amplifier Board


Supply Voltage  6.0 V
Input Voltage -0.3 to VDD +0.3V
Operation Temperature Range -40 to +85
Maximum Junction Temperature  150
Dimension 21x21x2mm
Weight 2g

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1.Is PAM8403 is a good amplifier?

  • The Pam8403 USB Power Amplifier Board an excellent choice for those looking for a Class-D stereo audio amplifier with a small board footprint. This Amplifier allows the user to reproduce high-quality audio from a stereo input. It also has a unique feature in that it can drive speakers directly from its output.

2.What is PAM8403 amplifier?

  • The PAM8403 is a class-D audio amplifier with a power output of 3W. It has a low THD+N, allowing for high-quality sound reproduction. The new filterless architecture enables the device to directly drive the speaker, eliminating the need for low-pass output filters and saving system cost and PCB area.

3.Can Class D amplifiers sound good?

  • The best Class D amplifiers in 2020 are exceptionally good, so much so that the advantages they have always offered in terms of efficiency, longevity, thermal management, and weight savings no longer come at the expense of any significant loss in audio quality.