This part is a kind of semiconductor called P11NM60.
Function of this product has STP11NM60.
Manufacturers : STMicroelectronics
Image and pinout :

Some of the text within the PDF file :
STP11NM60 - STP11NM60FP STB11NM60 - STB11NM60-1 N-channel 650V @ TJmax - 0.4Ω - 11A TO-220/FP/D2PAK/I2PAK MDmesh™ Power MOSFET General features Type VDSS (@TJ=TJmax) 650V 650V 650V 650V RDS(on) <0.45Ω <0.45Ω <0.45Ω <0.45Ω ID 3 STP11NM60 STP11NM60FP STB11NM60 STB11NM60-1 ■ ■ ■ ■ 11A 11A 11A 11A TO-220 1 2 3 1 2 TO-220FP High dv/dt and avalanche capabilities 100% avalanche tested Low input capacitance and gate charge Low gate input resistance 1 3 3 12 D2PAK i2PAK Description The MDmesh™ is a new revolutionary MOSFET technology that associates the Multiple Drain process with the Company’s PowerMESH™ horizontal layout. The resulting product has an outstanding low on-resistance, impressively high dv/dt and excellent avalanche charact [ ... ]
P11NM60 PDF Datasheet Download
