This part is a kind of semiconductor called 5M02659.

Function of this product has KA5M02659.

Manufacturers : Fairchild Semiconductor

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Some of the text within the PDF file :

www.fairchildsemi.com KA5x02xx-SERIES KA5H0265RC, KA5M0265R, KA5L0265R, KA5H02659RN/KA5M02659RN, KA5H0280R, KA5M0280R Fairchild Power Switch(FPS) Features • • • • • • • • • Precision Fixed Operating Frequency (100/67/50kHz) Low Start-up Current (Typ. 100uA) Pulse by Pulse Current Limiting Over Load Protection Over Voltage Protection (Min. 25V) Internal Thermal Shutdown Function Under Voltage Lockout Internal High Voltage Sense FET Auto-Restart Mode Description The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS with minimal external components. The Fairchild Power Switch(FPS) consist of high voltage power SenseFET and current mode PWM IC. Included PWM controller features integrated fixed oscillator, under voltage lock out, leading [ ... ]

5M02659 PDF Datasheet Download