This part is a kind of semiconductor called IRLZ44Z.

Function of this product has AUTOMOTIVE MOSFET.

Manufacturers : International Rectifier

Image and pinout :

Some of the text within the PDF file :

PD - 95849 AUTOMOTIVE MOSFET IRLZ44Z IRLZ44ZS IRLZ44ZL HEXFET® Power MOSFET D Features ● ● ● ● ● ● Logic Level Advanced Process Technology Ultra Low On-Resistance 175°C Operating Temperature Fast Switching Repetitive Avalanche Allowed up to Tjmax VDSS = 55V G S RDS(on) = 13.5mΩ ID = 51A Description Specifically designed for Automotive applications, this HEXFET® Power MOSFET utilizes the latest processing techniques to achieve extremely low onresistance per silicon area. Additional features of this design are a 175°C junction operating temperature, fast switching speed and improved repetitive avalanche rating . These features combine to make this design an extremely efficient and reliable device for use in Automotive applications and a wide variety of other applicat [ ... ]

IRLZ44Z PDF Datasheet Download