This part is a kind of semiconductor called 5M0965.

Function of this product has KA5M0965.

Manufacturers : Fairchild

Image and pinout :

Some of the text within the PDF file :

www.fairchildsemi.com KA5M0965Q Fairchild Power Switch(SPS) Features • • • • • • • • • • Precision fixed operating frequency (70kHz) Low start-up current(typ. 100uA) Pulse by pulse current limiting Over Load protection Over current protection Over voltage protecton (Min. 25V) Internal thermal shutdown function Under voltage lockout Internal high voltage sense FET Latch mode Description The SPS product family is specially designed for an off-line SMPS with minimal external components. The SPS consist of high voltage power SenseFET and current mode PWM IC. Included PWM controller features integrated fixed frequency oscillator, under voltage lock-out, leading edge blanking, optimized gate turn-on/turn-off driver, thermal shutdown protection, over vo [ ... ]

5M0965 PDF Datasheet Download