This part is a kind of semiconductor called 20N60S1.

Function of this product has FMP20N60S1.

Manufacturers : Fuji Electric

Image and pinout :

Some of the text within the PDF file :

FMP20N60S1 Super J-MOS series http://www.fujielectric.com/products/semiconductor/ FUJI POWER MOSFET N-Channel enhancement mode power MOSFET 2.7 ±0.1 6.4 ±0.2 15 ± 0.2 Features Low on-state resistance Low switching loss easy to use (more controllabe switching dV/dt by Rg) Outline Drawings [mm] TO-220 3.6± 0.2 10 +0.5 0 4.5±0.2 1.3±0.2 Applications UPS Server Telecom Power conditioner system Power supply 3.6 ±0.2 13.5 min. 1.2 ± 0.2 1 2.54 ± 0.2 23 0.8 +0.2 -0.1 2.54± 0.2 PRE-SOLDER 0.4 +0.2 0 2.7±0.2 1 23 CONNECTION 1 GATE 2 DRAIN 3 SOURCE JEDEC : TO-220AB DIMENSIONS ARE IN MILLIMETERS. Maximum Ratings and Characteristics Absolute Maximum Ratings at TC=25°C (unless otherwise specified) Description Drain-Source Voltage Symbol VDS VDSX Continuous Drain [ ... ]

20N60S1 PDF Datasheet Download