STF8N80K5

Single FETs, MOSFETs Overview

The STF8N80K5 is an N-channel enhancement mode Power MOSFET from STMicroelectronics' MDmesh K5 (SuperMESH5) series. It features a maximum drain-source voltage of 800 V and a continuous drain current of 8 A at 25 °C case temperature. The device utilizes TO-220FP packaging for surface-mount or through-hole applications, offering a maximum power dissipation of 110 W. Key electrical parameters include a typical on-resistance of 0.65 Ω and a maximum gate threshold voltage of 5 V. It operates within a junction temperature range of -55 °C to +150 °C.

Single FETs, MOSFETs Feature Summary

• MDmesh K5 technology provides ultra-low gate charge and very low figure of merit for high efficiency.
• Integrated Zener protection between gate and source terminals.
• 100% avalanche tested for ruggedness in switching applications.

Single FETs, MOSFETs Applications

• High-voltage switching circuits
• Power conversion systems requiring superior power density
• Applications demanding high efficiency and low conduction losses

Single FETs, MOSFETs Procurement Notes

Verify the specific datasheet revision and ordering suffixes with the manufacturer or authorized distributors before procurement. Confirm that the TO-220FP package variant matches the intended PCB footprint and thermal management requirements. Ensure compliance with RoHS directives and check for any recent product change notices affecting pinout or material composition.

Single FETs, MOSFETs Selection Notes

Select this component for designs requiring 800 V blocking capability with moderate current handling. The TO-220FP package offers a balance of thermal performance and mounting flexibility compared to standard TO-220. Consider the 0.65 Ω typical Rds(on) for conduction loss calculations and ensure the gate drive circuit can handle the low gate charge characteristics effectively.

Single FETs, MOSFETs Part Context

This part belongs to the MDmesh K5 family, which employs an innovative proprietary vertical structure to reduce on-resistance and gate charge. It complements other variants like STD8N80K5 and STF7LN80K5, offering higher current capacity than lower-rated models while maintaining the series' efficiency benefits.

Single FETs, MOSFETs Replacement Considerations

Direct substitutes within the same series include STF7LN80K5 (5 A) or STD8N80K5 (6 A), though current ratings differ. Verify pin compatibility and thermal resistance values when replacing with non-ST components or different packages.