This part is a kind of semiconductor called IRFZ44.
Function of this product has Power MOSFET.
Manufacturers : Vishay
Image and pinout :

Some of the text within the PDF file :
IRFZ44, SiHFZ44 Vishay Siliconix Power MOSFET PRODUCT SUMMARY VDS (V) RDS(on) (Ω) Qg (Max.) (nC) Qgs (nC) Qgd (nC) Configuration VGS = 10 V 67 18 25 Single D FEATURES 60 0.028 • Dynamic dV/dt Rating • 175 °C Operating Temperature • Fast Switching • Ease of Paralleling • Simple Drive Requirements • Compliant to RoHS Directive 2002/95/EC Available RoHS* COMPLIANT DESCRIPTION Third generation Power MOSFETs from Vishay provide the designer with the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness. The TO-220AB package is universially preferred for commercial-industrial applications at power dissipation levels to approximately 50 W. The low thermal resistance and low package cost of the TO-220AB contribute to its wide acce [ ... ]
SFI1812ML330A PDF Datasheet Download
