This part is a kind of semiconductor called STK0765BF.

Function of this product has Advanced Power MOSFET.

Manufacturers : AUK

Image and pinout :

Some of the text within the PDF file :

Semiconductor SWITCHING REGULATOR APPLICATIONS STK0765BF Advanced Power MOSFET Features • High Voltage: BVDSS=650V(Min.) • Low Crss : Crss=13pF(Typ.) • Low gate charge : Qg=32nC(Typ.) • Low RDS(on) :RDS(on)=1.2Ω(Typ.) Ordering Information Type No. Marking STK0765BF STK0765 Package Code TO-220F-3L PIN Connection G GDS TO-220F-3L D S Absolute maximum ratings Characteristic Drain-source voltage Gate-source voltage Drain current (DC) Drain current (Pulsed) * Drain power dissipation Single pulsed avalanche energy ② Avalanche current (Repetitive) ① Repetitive avalanche energy ① Junction temperature Storage temperature range * Limited by maximum junction temperature Symbol VDSS VGSS (Tc=25℃) ID (Tc=100℃) IDP PD EAS IAR EAR TJ Tstg Rating 650 ±30 7 4.4 [ ... ]

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