his Class D mono audio amplifier module adopts professional TPA3118 audio chip with PBTL parallel bridge-tied load design, providing stable 60W high-power output for single-channel speakers. It supports wide DC 8V-24V input voltage, compatible with 12V/24V power adapters and lithium battery packs.
The circuit board measures 46mm × 35mm with compact layout, reserved independent mute control pins for external switch mute operation. It reaches up to 90% energy conversion efficiency, bringing much lower heat than traditional analog amplifiers. Multiple safety protections including short-circuit, overheat and over-current are integrated to avoid damage of speakers and the module itself.
It is widely applied to subwoofers, car audio systems, home passive speakers and various DIY audio amplifier projects.
kernel parameter
1、Chip model: TPA3118
2、Output power: 60W RMS (at 24V supply and 4Ω load); approximately 30W at 12V supply
3、Operating voltage: DC 8V - 24V (12V or 24V is recommended for optimal performance)
4、Load impedance: Supports 4Ω - 8Ω speakers
5、Operating mode: PBTL (mono high-power output), non-stereo
6、Efficiency: >90% (D-class amplifier characteristic, low heat generation)
7、Protection functions: Over-temperature protection, short-circuit protection, under-voltage lockout
8、Control interface: MUTE pin (high voltage for mute), POWER indicator light
9、Size: Approximately 46mm × 35mm × 12mm (including capacitor height)
We focus on three core product categories to meet diverse market demands:
1、Passive Components: We offer a comprehensive range of resistors, capacitors, inductors, and connectors, backed by stable stock and competitive pricing to support your continuous production needs.
2、Integrated Circuits (ICs) & Microcontrollers: Our portfolio features high-performance chips, including the ESP32 series, MCUs, and logic ICs. All components are sourced from authorized distributors to ensure guaranteed quality and authenticity.
3、PCB & PCBA Solutions: We provide complete supply chain support for printed circuit boards, ranging from prototype fabrication to mass production assembly, serving the IoT, consumer electronics, and industrial sectors.
4、Quality & Service Commitment
At Muren Technology, we prioritize authenticity and traceability. Every batch undergoes strict quality inspection with full lot traceability and customs declaration support. Whether you require samples, small-batch trials, or large-volume orders, our professional team ensures accurate delivery and long-term stable cooperation.
