DFRobot
3W Mini Audio Stereo Amplifier (W2.54)
This compact stereo amplifier module from DFRobot features a 2.54mm pin pitch for easy breadboard and embedded use. It delivers 3W per channel with left and ...
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This compact stereo amplifier module from DFRobot features a 2.54mm pin pitch for easy breadboard and embedded use. It delivers 3W per channel with left and right stereo output, and includes a shutdown (SHDN) pin for switching between working and sleep modes.
By default, the module is in working mode when the SHDN pin is unconnected. Pulling SHDN low (0V) puts the amplifier into sleep mode, while pulling it high (5V) enables working mode — making it easy to control power consumption from a microcontroller.
Key Features
- Stereo Output – Independent left and right audio channels
- 2.54mm Pin Pitch – Breadboard-friendly for easy prototyping
- Sleep/Wake Control – SHDN pin for low-power sleep mode
- Compact Module – Small form factor for embedded applications
- No Programming Required – Works directly with passive speakers
Specifications
- Output Power – 3W + 3W
- Pin Pitch – 2.54mm
- Power Supply – Up to 5.5V DC max
- Sleep Mode – SHDN pin low (0V) = sleep, high (5V) = active
Ideal For
- Robot voice systems
- DIY music boxes
- Sound modification projects
- Embedded audio applications
Package Contents
- 1× 3W mini audio stereo amplifier module (W2.54)
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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