IC TDA2003 amplifier Circuit power 10 W


Circuit  of power audio amplifier with tda2003 for 10 Watts power. TDA 2003 has a better performance than the tda2002 using the same configuration of pins. Additional characteristics relate to the tda2002, it demands few components external, easy assembly, it is a low-cost solution for an audio amplifier. A mounted amplifier with tda2003 presents protection against short of the pins with the ground.

The good of setting up an amplifier with tda2003 is that he is easy of being found at the market, even for who is far away from the great centers. Has the possibility to do to buy him/it integrated by the internet. The tda2003 can be supplied by batteries by a long period.

Description of the circuit of the amplifier of 10 watts simple source

It is treated of an assembly easy of being accomplished what is necessary, it is just a tda2003 and one more half dozen of components.

To facilitate the assembly, the circuit it counts with a printed circuit board.

Get new posts by email:
Follow us on social media

Schematic of the amplifier with tda2003

Circuit Diagram Power Amplifier Tda2003 Circuit
Circuit Diagram Power Amplifier Tda2003 Circuit

Suggestion of printed circuit board for assembly of the amplifier with tda2003.

Printed Circuit Board, Pcb Power Amplifier Tda2003 Circuit
Printed Circuit Board, Pcb Power Amplifier Tda2003 Circuit
Printed Circuit Board Component View, Pcb Power Amplifier Tda2003 Circuit
Tda2003 Pcb

Part list to assemble the amplifier with IC TDA2003

Last Update: 07/29/2021 18:03

CX39nF/63VPolyester capacitor1
C12.2µF/16VElectrolytic capacitor1
C1A1 a 2.2µF/63V (Optional)Polyester capacitor1
C2, C6470µF/25VElectrolytic capacitor2
C3100nF (104)Ceramic capacitor1
C5100nF/63V (104)Polyester capacitor1
C41000µF/25VElectrolytic capacitor1
C7330pFCeramic capacitor1
IC1TDA2003Audio amplifier integrated circuit1
Resistors 1/4W 5%
R1220Red, red, brown, gold1
R22.2Red, red, gold, gold1
R31 Ohm / 1WBrown, black, gold, gold1
R456KGreen, blue, orange, orange, orange1
RX39Orange, white, black, gold1
CN1INTerminal block 2 pin 5.08 mm1
CN2VCCTerminal block 2 pin 5.08 mm1
CN3OUTTerminal block 2 pin 5.08 mm1
Solder, Wires, PCB, case, power supply, heatsink, etc.

Download the PDF files of this assembly. Updated files, now includes PDF, PNG and GERBER plate, plus 10×10 panel (4 plates)


Datasheet PDF ST Microelectronics

Datasheet PDF Contek Microelectronics

Buy Audio amplifier diy kit in Aliexpress with free Shipping in the Worldwide.

How useful was this post?

Click on a star to rate it!

Average rating / 5. Vote count:

No votes so far! Be the first to rate this post.

As you found this post useful...

Share on the social networks!

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Photo of author
About the author
Xtronic.org blog author. Electronics technician for the technical school of Brasilia - Brazil. Interested in electronics, circuits and technology in general.

21 thoughts on “IC TDA2003 amplifier Circuit power 10 W”

  1. As i understand from schematic:
    on the left side:1 In; 2 and 3 Ground
    on the right side: RL +Speaker ;+ V in; Ground

    Anyone assembled this one and thested with this values?


  2. i’m a little bit confused in this project, i don’t know wheres the “+” and “-” for the input voltage and for the input of sounds and the output of the speaker.. please help me.. what is the input voltage?

  3. I have enjoyed myself browsing through this great circuit but if u can include the operation of the circuit


Leave a Comment