This part is a kind of semiconductor called B260AQ.

Function of this product has SCHOTTKY BARRIER RECTIFIER.

Manufacturers : Diodes

Image and pinout :

Some of the text within the PDF file :

Green B220AQ/Q - B260AQ/Q 2.0A SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER Product Summary B220AQ/Q-B240AQ/Q VRRM (V) 20/30/40 IO (A) 2.0 B250AQ/Q,B260AQ/Q VRRM (V) 50/60 IO (A) 2.0 VF Max (V) TA = +25°C 0.5 IR Max (mA) TA = +25°C 0.5 VF Max (V) TA = +25°C 0.7 IR Max (mA) TA = +25°C 0.5 Features and Benefits  Guard Ring Die Construction for Transient Protection  Ideally Suited for Automated Assembly  Low Power Loss, High Efficiency  Surge Overload Rating to 30A Peak  For Use in Low-Voltage, High-Frequency Inverters  Lead-Free Finish; RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Notes 3)  Qualified to AEC-Q101 Standards for High Reliability  PPAP Capable (Note 4) Description and Applications This Schottky Barrier Recti [ ... ]

B260AQ PDF Datasheet Download