FQD2N80TM from Fairchild/ON Semiconductor is a MOSFET component used in power and switching designs where engineers need dependable high-voltage transistor behavior for conversion, control, and general electronic system design. Although the provided category lists RF MOSFETs, buyers should confirm the exact device classification and package details against the official manufacturer datasheet before design-in. This part may be considered for power supply stages, switching nodes, industrial controls, and repair or maintenance sourcing where matching the original bill of materials is important. From a procurement standpoint, FQD2N80TM is best evaluated with attention to lifecycle visibility, approved alternates, and current channel stock. Lifecycle status is currently information not available, so engineering and sourcing teams should verify whether the device remains active before committing to new production. RoHS compliance information is also not available in the provided data and should be confirmed directly through ON Semiconductor documentation or authorized distribution sources.