This part is a kind of semiconductor called 3BR1065JF.

Function of this product has ICE3BR1065JF.

Manufacturers : Infineon Technologies

Image and pinout :

Some of the text within the PDF file :

V e r s i o n 2 .0 , 1 1 S e p 2 00 8 CoolSET -F3R ICE3BR1065JF Off-Line SMPS Current Mode Controller with integrated 650V CoolMOS® and Startup cell (frequency jitter Mode) in FullPak ® Power Management & Supply N e v e r s t o p t h i n k i n g . CoolSET®-F3R ICE3BR1065JF Revision History: Previous Version: Page 15 17,18 19 19 23 24~28 29,30 31 32 2008-09-11 0.2 Datasheet Subjects (major changes since last revision) Add max. limitation for CBK capacitance Revise description of protection mode. Add constrains of 25.5V Vcc OVP Revise max. voltage for VFB, VCS and VBA Revise ID_Puls to Tj=125°C and add the avalanche rating Add Drain Source Avalanche Breakdown Voltage Add typical controller performance characteristics Add typical CoolMOS [ ... ]

3BR1065JF PDF Datasheet Download