The IRLML2803TRPBF by Infineon is a N-channel Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET). This is a unipolar transistor, meaning that it is operational with only one type of charge, in this case negative. It has a maximum DC voltage rating of 30V and a maximum continuous drain current of 1.2A. With a maximum power dissipation of 0.4W, it is suitable for a variety of general-purpose applications, and it is housed in a small, Surface-Mounted Device (SMD) package of SOT23 size.