This part is a kind of semiconductor called 2SB799.

Function of this product has Transistor.

Manufacturers : Kexin

Image and pinout :

Some of the text within the PDF file :

SMD Type PNP Silicon Epitaxial Transistor 2SB799 Transistors Features World standard miniature package:SOT-89 Low collector saturation voltage:VCE(sat)<-0.4V(IC=-500mA,IB=-50mA) Absolute Maximum Ratings Ta = 25 Parameter Collector to base voltage Collector to emitter voltage Emitter to base voltage Collector current Collector current(Pulse) * Total power dissipation Junction temperature Storage temperature range * PW 10ms,duty cycle 50%. Symbol VCBO VCEO VEBO IC IC PT Tj Tstg Rating -60 -50 -5 -0.7 -1.0 2 150 -55 to +150 Unit V V V A A W Electrical Characteristics Ta = 25 Parameter Collector cutoff current Emitter cutoff current DC current gain * Collector saturation voltage * Base saturation voltage * Base-emitter voltage * Gain bandwidth product Output capacitance * Pulsed: PW 350 ì [ ... ]

2SB799 PDF Datasheet Download