# Audio module with SC8002B amplifier, built-in speaker, and volume control, 5V, 2W

> Compact audio module with SC8002B amplifier, built-in speaker, and potentiometer for volume control. Operating voltage 5 VDC, current >500 mA, maximum output power 2W, amplification factor ~8.5x. 3-pin interface (GND, VCC, S), speaker volume 80 dB, dimensions 49 x 30 x 16 mm. Suitable for tones, alerts, and simple melodies in Arduino projects or other control systems.

- Page: https://sigmanortec.ro/en/audio-module-with-sc8002b-amplifier-built-in-speaker-and-volume-control-5v-2w
- Price: 40.23 RON
- Availability: In stock; 1-2 zile
- Reference: 88141 · EAN: 5944359312979
- Category: Mechatronics and IoT > Sensors and Modules > Audio and Sound > Audio Amplifiers
- Specifications: Type: Amplifier; Power: 0 - 20W; Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 05:21 (Europe/Bucharest)

## Description

Compact solution for audio playback in Arduino and automation projects, with SC8002B amplifier that increases the signal up to 8.5x and provides up to 2W at 5V. It has an integrated speaker and potentiometer for quick volume control, connects easily via the 3-pin interface, ideal for tones, alerts and sound effects.
The audio module with SC8002B amplifier is a practical and compact solution for applications requiring simple and efficient audio playback. It integrates an SC8002B amplifier, an adjustable potentiometer for volume control, a miniature speaker, and an easy 3-pin interface, making it simple to connect and quick to use in electronic projects, Arduino platforms, or other control systems.
This module can amplify weak audio signals by approximately 8.5 times, allowing direct playback through the integrated speaker. Due to its compact design and suitable power consumption for 5 VDC supply, it is ideal for generating sound effects, playing tones, audio alerts, or simple melodies. It can also be used as an external audio amplifier for various playback equipment when a small, affordable, and easy-to-integrate solution is needed.
The 3-pin interface simplifies installation, having dedicated connections for power, ground, and signal. Volume adjustment via the potentiometer provides quick control over sound intensity, and the integrated speaker removes the need for additional components in many basic applications.
Specifications:
Amplifier chip: SC8002B
Operating voltage: 5 VDC
Operating current: > 500 mA
Maximum output power: 2 W
Speaker power: 0.15 W
Speaker volume: 80 dB
Amplification factor: approximately 8.5x
Operating temperature: 0 - 40 °C
Dimensions: 49 x 30 x 16 mm
Pinout:
Pin number
Pin name
Pin description
1
GND
Ground
2
VCC
5 VDC
3
S
Signal
Usage:
The module is used by powering it with 5 VDC and connecting the audio signal to the dedicated pin. For sound playback, square waves with different frequencies and durations can be sent to the signal pin. In Arduino projects, simple tones can be generated with the tone(pin, frequency) function, and for melodies or more complex sound sequences, lists or arrays of frequencies and durations can be used.
Before first use, it is recommended to set the potentiometer to minimum volume, then gradually increase the volume to the desired level. This measure helps protect the speaker and avoid overloading it.