This part is a kind of semiconductor called STF30NM60ND.
Function of this product has N-channel Power MOSFET.
Manufacturers : STMicroelectronics
Image and pinout :

Some of the text within the PDF file :
STP/F30NM60ND-STW30NM60ND STB30NM60ND-STI30NM60ND N-channel 600V - 0.11Ω - 25A TO-220/FP/D2PAK/I2PAK/TO-247 FDmesh™ II Power MOSFET (with fast diode) Preliminary Data Features Type STB30NM60ND STI30NM60ND STF30NM60ND STP30NM60ND STW30NM60ND VDSS 600V 600V 600V 600V 600V RDS(on) Max < 0.13Ω < 0.13Ω < 0.13Ω < 0.13Ω < 0.13Ω ID 25A 25A 25A(1) 25A 25A 3 3 1 2 3 1 2 1 TO-220 D2PAK TO-220FP 1. Limited only by maximum temperature allowed ■ ■ ■ ■ ■ The world’s best RDS(on)*in TO-220 amongst the fast recovery diode devices 100% avalanche tested Low input capacitance and gate charge Low gate input resistance Extremely high dv/dt and avalanche capabilities Figure 1. 3 12 2 1 3 I2PAK TO-247 Internal schematic diagram Application ■ Switchin [ ... ]
STF30NM60ND PDF Datasheet Download
