This part is a kind of semiconductor called 1H0265R.
Function of this product has KA1H0265R.
Manufacturers : Fairchild Semiconductor
Image and pinout :
Some of the text within the PDF file :
www.fairchildsemi.com KA1M0265R/KA1H0265R Fairchild Power Switch(FPS) Features • • • • • • • • • Precision Fixed Operating Frequency KA1M0265R (70kHz) , KA1H0265R (100kHz) Pulse by Pulse Over Current Limiting Over Load Protection Over Voltage Protection (Min. 23V) Internal Thermal Shutdown Function Under Voltage Lockout Internal High Voltage Sense FET Auto Restart 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 controller IC. PWM controller features integrated fixed oscillator, under voltage lock out, leading edge blanking, optimized gate turn-on/turn-off driver, thermal s [ ... ]