FKPF8N80

Triacs Overview

The FKPF8N80 is an N-channel power MOSFET manufactured by Fairchild Semiconductor, part of the Q-FET advanced C-Series. It features a drain-source voltage (Vdss) of 800 V and a continuous drain current (Id) of 8 A at case temperature. The device exhibits a maximum on-resistance (Rds(on)) of 1.55 Ω at 4 A with a gate-source voltage of 10 V. It utilizes a TO-220F package for through-hole mounting. Key electrical characteristics include a gate charge (Qg) of 45 nC at 10 V and a maximum power dissipation of 59 W at 25°C ambient temperature.

Triacs Feature Summary

• High-voltage capability with 800 V breakdown rating suitable for demanding power switching applications.
• Integrated active clamp structure designed to provide high noise immunity against rapid voltage transients.
• Snubberless design eliminates the need for external RC snubber networks, simplifying circuit topology.

Triacs Applications

• Motor control circuits requiring robust transient protection.
• Solid-state relay isolation stages.
• AC lighting ballast drivers in noisy industrial environments.

Triacs Procurement Notes

Verify the specific suffix code on the component marking to confirm the exact package variant, as the base model may correspond to different physical packages such as TO-220AB or TO-220F. Cross-reference the manufacturer date code and RoHS compliance status with the official datasheet revision history to ensure material consistency. Confirm that the sourcing channel provides original manufacturer documentation rather than third-party interpretations.

Triacs Selection Notes

Select this component when designing circuits that require high dv/dt immunity without external snubbers. Ensure the thermal management solution supports the 59 W dissipation limit at the intended operating temperature. Verify that the gate drive voltage meets the 10 V requirement for optimal Rds(on) performance. Consider the TO-220F package constraints regarding PCB mounting space and lead form factors during layout.

Triacs Part Context

This device belongs to the Q-FET advanced C-Series from Fairchild Semiconductor, which integrates proprietary active clamp technology. It is distinct from standard MOSFETs by its enhanced ability to withstand high-frequency noise and voltage spikes common in triac drive and motor control applications. The series aims to reduce system complexity by removing passive snubber components typically required for high-dv/dt protection.

Triacs Replacement Considerations

The FQPF8N80C is a documented equivalent part number within the same product family, offering identical electrical specifications. When substituting, verify that the package type matches the existing footprint, as suffixes may indicate variations between TO-220AB and TO-220F configurations. Ensure the replacement source provides valid datasheets confirming the active clamp feature retention.