This part is a kind of semiconductor called 20N60.

Function of this product has 600V N-CHANNEL POWER MOSFET.

Manufacturers : UTC

Image and pinout :

Some of the text within the PDF file :

UNISONIC TECHNOLOGIES CO., LTD 20N60 20A, 600V N-CHANNEL POWER MOSFET  DESCRIPTION The UTC 20N60 is an N-channel enhancement mode power MOSFET using UTC’s advanced technology to provide customers with planar stripe and DMOS technology. This technology is specialized in allowing a minimum on-state resistance and superior switching performance. It also can withstand high energy pulse in the avalanche and commutation mode. The UTC 20N60 is universally applied in motor control, UPS, DC choppers and switch-mode and resonant-mode power supplies.  FEATURES * RDS(ON) < 0.45Ω @ VGS=10V, ID=10A * High switching speed  SYMBOL 2.Drain Power MOSFET 1.Gate 3.Source  ORDERING INFORMATION Note: Ordering Number Lead Free Halogen Free 20N60L-T47-T 20N60G-T47-T 20N60L-T3P-T 20N60G [ ... ]

20N60 PDF Datasheet Download