ON Semiconductor, MBR, SS8550 PNP Epitaxial Silicon Transistor,
High total power dissipation, High current capability,
Vcbo -40V, Vceo -25V, Ic -1.5A, 1W, Ft 100..200MHz,  
Case plastic TO-92-3pin, EBC,

=S8550, PSS8550, 8550, 

Comlementar PNP=SS8050,