The IRFU7440PBF is an International Rectifier MOSFET (metal-oxide-semiconductor field-effect transistor) manufactured by Infineon. It is rated at 40 Volts and 90 Amps, and features a low 2.5 milliOhm on-state resistance and 89 nanoCoulomb gate charge. The package type is I-Pak which consists of a thin heat-resistant coating on the top of the device, providing better electrical insulation and thermal performance. The IRFU7440PBF is typically used for motor control, DC-DC converters, LED lighting, power supply designs, and Class D Audio amplifiers.