This part is a kind of semiconductor called 2SD2343.
Function of this product has Power Transistor.
Manufacturers : Rohm
Image and pinout :
Some of the text within the PDF file :
Transistors 2SB1236 / 2SB1186 2SC4132 / 2SD1857 / 2SD2343 / 2SD1763 (94L-268-A56) (96-175-C56) 276 [ ... ]
2SD2343 PDF Datasheet Download
