This part is a kind of semiconductor called P1014AP.

Function of this product has NCP1014AP.

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

NCP1010, NCP1011, NCP1012, NCP1013, NCP1014 Self−Supplied Monolithic Switcher for Low Standby− Power Offline SMPS The NCP101X series integrates a fixed−frequency current−mode controller and a 700 V MOSFET. Housed in a PDIP−7, PDIP−7 Gull Wing, or SOT−223 package, the NCP101X offers everything needed to build a rugged and low−cost power supply, including soft−start, frequency jittering, short−circuit protection, skip−cycle, a maximum peak current setpoint and a Dynamic Self−Supply (no need for an auxiliary winding). Unlike other monolithic solutions, the NCP101X is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (65 − 100 − 130 kHz). When the current setpoint falls below a given value, e.g [ ... ]

P1014AP PDF Datasheet Download