This part is a kind of semiconductor called TDA2003.

Function of this product has 10W CAR RADIO AUDIO AMPLIFIER.

Manufacturers : UTC

Image and pinout :

Some of the text within the PDF file :

UNISONIC TECHNOLOGIES CO., LTD TDA2003 LINEAR INTEGRATED CIRCUIT 10W CAR RADIO AUDIO AMPLIFIER  DESCRIPTION The UTC TDA2003 is a monolithic audio power amplifier integrated circuit.  FEATURES *Very Low External Component Required. *High Current Output ( up to 3 A). *Low Harmonic and Crossover Distortion. *Built-in Over Temperature Protection. *Short Circuit Protection Between all Pins. 1 1 TO-220B TO-220-5  ORDERING INFORMATION Ordering Number Lead Free Halogen Free TDA2003L-TA5-T TDA2003G-TA5-T TDA2003L-TB5-T TDA2003G-TB5-T Package TO-220-5 TO-220B Packing Tube Tube  MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 10 QW-R107-002.H UNISONIC TECHNOLOGIES CO., LTD TDA2003 LINEAR INTEGRATED CIRCUIT  PIN DESCRIPTION PIN N [ ... ]

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