This part is a kind of semiconductor called 8N60.
Function of this product has N-CHANNEL POWER MOSFET.
Manufacturers : Unisonic Technologies
Image and pinout :

Some of the text within the PDF file :
UNISONIC TECHNOLOGIES CO., LTD 8N60 8A, 600V N-CHANNEL POWER MOSFET DESCRIPTION The UTC 8N60 is a high voltage and high current power MOSFET, designed to have better characteristics, such as fast switching time, low gate charge, low on-state resistance and have a high rugged avalanche characteristics. This power MOSFET is usually used at high speed switching applications in power supplies, PWM motor controls, high efficient DC to DC converters and bridge circuits. FEATURES * RDS(ON) < 1.2Ω@VGS = 10 V * Ultra low gate charge ( typical 28 nC ) * Low reverse transfer capacitance ( CRSS = typical 12.0 pF ) * Fast switching capability * Avalanche energy specified * Improved dv/dt capability, high ruggedness SYMBOL Power MOSFET ORDERING INFORMATION Note: Ordering Number Lead F [ ... ]
8N60 PDF Datasheet Download
