P-channel MOSFETs are not a specific brand but a type of power transistor used in electronic circuits, belonging to the broader category of MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors). These components are widely produced by various semiconductor companies globally, including industry leaders like Infineon Technologies (Germany), ON Semiconductor (USA), Toshiba (Japan), and STMicroelectronics (Switzerland/France). P-channel MOSFETs are primarily used in power management applications, such as switching, amplification, and voltage regulation, serving industries like automotive, consumer electronics, industrial automation, and renewable energy. Key products include low-voltage and high-voltage MOSFETs, often integrated into circuits for efficiency and compact design.