20W Bridge Audio Amplifier

20W Bridge Audio Amplifier project, based on the TDA2005 IC, The TDA 2005 IC is class B dual audio amplifier, specifically designed for car radio applications etc.


  • Power supply input : 18 VDC
  • Output power : 20 W, 4 Ω
  • IC built in Thermal Shut-down, Load dump voltage surge protected
  • Terminal pins for connecting left and right audio signal inputs
  • Berg Connector for connecting Potentiometer (POT) for volume adjustment
  • Power Battery Terminal (PBT) for easy power supply and speaker connection
  • Power-On LED indicator
  • Heatsink for IC
  • Four mounting holes of 3.2 mm each with nut and stud
  • PCB dimensions 63 mm x 65 mm
  • Note : Use shielded cable for connecting potentiometer

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