This part is a kind of semiconductor called STK0825F.
Function of this product has Advanced Power MOSFET.
Manufacturers : AUK
Image and pinout :

Some of the text within the PDF file :
Semiconductor STK0825F Advanced Power MOSFET DC-DC CONVERTER APPLICATION HIGH VOLTAGE SWITCHING APPLICATIONS Features • • • • High Voltage: BVDSS=250V(Min.) Low Crss : Crss=13pF(Typ.) Low gate charge : Qg=15nC(Typ.) Low RDS(on) :RDS(on)=0.43Ω(Max.) Type NO. STK0825F Marking STK0825 Package Code TO-220F-3L Ordering Information Outline Dimensions Φ3.05~3.35 9.80~10.20 unit : mm 2.60~3.00 15.40~15.80 12.20~12.60 9.10~9.30 12.40~13.00 1.07 Min. 0.90 Max. 0.60 Max. 2.54 Typ. 2.54 Typ. 1 2 3 0.60 Max. 3.46 Typ. 4.70 Max. 2.70 Max. PIN Connections 1. Gate 2. Drain 3. Source KSD-T0O007-002 1 STK0825F Absolute maximum ratings Characteristic Drain-source voltage Gate-source voltage Drain current (DC) Drain current (Pulsed) * (Tc=25°C) Symbol VDSS VGSS ID (Tc=25�� [ ... ]
STK0825F PDF Datasheet Download
