This part is a kind of semiconductor called ICE3BR0665JF.

Function of this product has Off-Line SMPS Current Mode Controller.

Manufacturers : Infineon Technologies

Image and pinout :

Some of the text within the PDF file :

www.DataSheet.co.kr V e r s i o n 2 .0 , 1 1 S e p 2 00 8 CoolSET -F3R ICE3BR0665JF 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 . Datasheet pdf - http://www.net/ www.DataSheet.co.kr CoolSET®-F3R ICE3BR0665JF Revision History: Previous Version: Page 15 17,18 19 19 23 24~28 29,30 31 32 2008-09-11 1.1 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 per [ ... ]

ICE3BR0665JF PDF Datasheet Download