The STF14N80K5 is a very high voltage N-channel power MOSFET manufactured by STMicroelectronics, built using their proprietary MDmesh K5 technology based on an innovative vertical structure. This design delivers a dramatic reduction in on-resistance combined with ultra-low gate charge, making it well suited for applications requiring superior power density and high efficiency.

Rated for 800V drain-source voltage and 12A continuous drain current, with a typical on-resistance of just 0.400Ω (445mΩ max), this MOSFET is housed in the isolated TO-220FP through-hole package — a fully-molded package that simplifies heatsink mounting since it eliminates the need for a separate insulating mica pad, while still offering an insulation withstand voltage of 2.5kV from all three leads to the heatsink.

Thanks to its very high voltage rating and efficient switching characteristics, the STF14N80K5 is commonly used in power supplies and converters, smart chargers and adapters, and adapters for tablets, notebooks, and all-in-one devices — applications where high breakdown voltage and low conduction/switching losses are essential.

Key Specifications

• Type: N-Channel Power MOSFET (MDmesh K5 technology)
• Manufacturer: STMicroelectronics
• Package Marking: 14N80K5
• Package: TO-220FP (isolated, 3-lead + tab)
• Drain-Source Voltage (VDS): 800V
• Continuous Drain Current (ID): 12A @ TC=25°C (7.4A @ TC=100°C)
• RDS(on): 0.400Ω typ. / 0.445Ω max
• Total Power Dissipation (PTOT): 30W @ TC=25°C
• Gate-Source Voltage (VGS): ±30V max
• Insulation Withstand Voltage: 2.5kV (RMS)

Common Applications

• Power supplies and converters
• Smart chargers and adapters
• Tablet, notebook, and AIO device adapters
• High-voltage switching power circuits

Package Includes

• 1 x STMicroelectronics STF14N80K5 N-Channel MOSFET (TO-220FP)