TDA2003 10W Audio Amplifier IC (Car Radio)
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Prices updated: 13 Oct 2026
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About this product
The TDA2003 is a 10W audio power amplifier IC designed for car radio applications. It delivers output current up to 3.5A with very low harmonic and cross-over distortion. It includes protection against DC and AC short circuits to ground, thermal overrange and load-dump voltage surges up to 40V.
Specifications
- Output power
- 10 W
- Maximum output current
- 3.5 A
- Load-dump surge protection
- Up to 40 V
- Protection features
- Short circuit to ground (DC and AC), thermal overrange
- Package
- Pentawatt 5-lead
Frequently asked questions
What supply voltage should I use for the TDA2003?
It is designed for car radio use, where the nominal supply is around 12V. Check the supply voltage range and the maximum ratings in the datasheet, and use a heatsink for sustained output.
How is the speaker connected to the TDA2003?
Most TDA2003 single-supply circuits connect the output pin to the speaker through a large electrolytic coupling capacitor, with the speaker returned to ground. Follow the application circuit in the datasheet, including the input and feedback components.
