This part is a kind of semiconductor called TDA2010.

Function of this product has 12W Hi-Fi Audio Amplifier.

Manufacturers : SGS-Ates

Image and pinout :

Some of the text within the PDF file :

The TDA2010 device incorporates an original short circuit protection system, comprising an arrangement for automatically limiting the dissipated power so as to keep to working point of the output transistors within their safe operating area. A coventional theraml shut-down system is also included. [ ... ]

TDA2010 PDF Datasheet Download