Audio Amplifier LM1875 Class-AB PCB Board
Xform3 Audio Amplifier LM1875 Class-AB PCB Board with heatsinks
Audio Amplifier LM1875  Class-AB PCB Board

Audio Amplifier LM1875 Class-AB PCB Board

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XFPCB003 - Class-AB Amplifier 20-30W LM1875 Board

The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.


- Specifications

  • Load: 4Ω - 8Ω
  • Output Power: 30W
  • Supply Voltage 12V-36V(±18)

- Features

  • Low Distortion: 0.015%, 1 kHz, 20 W
  • Wide Power Bandwidth: 70 kHz
  • High Current Capability: 4A
  • Protection for AC and DC Short Circuits to Ground
  • Through-hole components

- Dimensions

PCB Clad: 76mm x 66mm
Height/w Heat sinks: 50mm


- Wiring Example

Lm1875 Amplifier PCB Board Wiring Diagram


- Schema


- Warranty

All our products come with 1 year warranty (repair or replace). We intend to provide repair or replace warranty on all our products indefinitely 

- Open-source hardware (OSH)
This product is open-sourced.
KiCad Schematics, Gerber, BOM, Drill, Silk/Solder Masks, Positive and Negative plot files are available on 


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