IRFZ44N (Not logic level buy IRL version as shown in image - the logic level - see other sale)

55V Single N-Channel Power MOSFET in a TO-220 package

Support various applications such as DC motors driver, inverters, SMPS, lighting, load switches as well as battery powered applications.

The device is a through-hole package with industry standard footprints for ease of design. 

The IRFZ44N is a MOSFET power transistor. It's known for its capacity to switch high voltage and current levels. MOSFET means Metal Oxide Semiconductor Field Effect Transistor, a transistor type that has low resistance to output and high resistance to input.