This part is a kind of semiconductor called 2SD424.

Function of this product has (2SDxxx) TRANSISTOR.

Manufacturers : Toshiba

Image and pinout :

Some of the text within the PDF file :

w w a D . w S a t e e h U 4 t m o .c w w w .D t a S a e h U 4 t e m o .c w w w .D at h S a t e e 4U . m o c [ ... ]

2SD424 PDF Datasheet Download