LM386 Audio Amplifier Module (20x Gain).
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৳ 320.00৳ 500.00 (-36%)
The LM386 Audio Amplifier Module is a compact, low-power mono audio amplifier board featuring an integrated 10K volume potentiometer and a default 20x gain boost. Operating on a flexible 4V to 12V DC input, this pocket-sized module is designed to cleanly amplify low-power analog signals to drive small 4Ω to 8Ω speakers. It is highly optimized for battery-powered hobby projects, Arduino/Raspberry Pi audio outputs, DIY radios, and portable intercoms.
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LM386 Audio Amplifier Module (20x/200x Gain)
The LM386 Audio Amplifier Module is an ultra-compact, high-efficiency monolithic audio power amplifier breakout board. Designed primarily for low-voltage consumer electronics and hobbyist DIY audio systems, it offers a low external component count to make integration fast and simple. The onboard LM386 integrated circuit serves as a Class-AB power amplifier that safely boosts analog signals to drive small loads, such as a 4Ω to 8Ω speaker.
LM386 Audio Amplifier Module (20x Gain).
Key Features
- Adjustable Output Gain: The basic module is pre-configured with a 20x multiplier. Its internal circuitry can be expanded using basic external pin components to configure up to a 200x voltage boost.
- Onboard Volume Potentiometer: Outfitted with an accessible 10K ohm variable resistor, allowing quick, manual on-the-fly output volume attenuation.
- Built-in Status LED: Incorporates a small power indicator light to instantly verify input voltage state and operational status.
- Industrial Terminal Block: Employs a rugged, 2-pin green screw-down terminal block that ensures reliable, clamp-tight speaker wire connection.
- Low Idle Current: Draws highly optimized quiescent current (typically around 4mA), maximizing runtime in battery-powered setups.
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LM386 Audio Amplifier Module (20x Gain).
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Technical Specifications
Parameter Specification Details Operating Voltage 4V to 12V DC Recommended range for stable operation Quiescent Current ~4mA Highly conservative idle power consumption Default Gain 20x (26 dB) Expandable up to 200x (46 dB) Output Load Impedance 4Ω to 8Ω Ideal for low-power consumer speakers Audio Channel Mono (Single-Channel) Perfect for simple signal output amplification Dimensions Approx. 41mm × 13mm Miniature footprint for tight enclosures -
LM386 Audio Amplifier Module (20x Gain).
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Common Applications
- Microcontroller Audio Out: Amplifies low-power PWM or DAC audio outputs generated from Arduino, Raspberry Pi, or ESP32 development platforms.
- DIY Pocket Electronics: Powers standalone components in small portable AM/FM radios, custom intercoms, electronic doorbells, and sound-to-light effect systems.
- Signal Instrumentation: Acts as an intermediate booster stage for low-power inputs like analog microphones, guitar pickups, and environmental acoustic sensors.
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