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Product Detailed Parameters
- Description：MOSFET N-CH 800V 2A I-PAK
- Series：SuperFET® II
- Mfr：Fairchild Semiconductor
- Package：Bulk
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：800 V
- Current - Continuous Drain (Id) @ 25°C：2A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：10V
- Rds On (Max) @ Id, Vgs：3.4Ohm @ 1A, 10V
- Vgs(th) (Max) @ Id：4.5V @ 200µA
- Gate Charge (Qg) (Max) @ Vgs：9.6 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：400 pF @ 100 V
- FET Feature：-
- Power Dissipation (Max)：32W (Tc)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Supplier Device Package：IPAK
- Package / Case：TO-251-3 Short Leads, IPAK, TO-251AA
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Overview
The FCU3400N80Z is an N-channel SuperFET II MOSFET manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It features a low on-resistance and ultra-low gate charge for efficient power switching. The device supports high-voltage applications with robust avalanche energy ratings and improved ESD capabilities. It is designed for AC-DC power supplies, LED lighting, audio equipment, notebook adapters, ATX power supplies, and industrial power systems.
Feature Summary
- Low on-resistance to reduce conduction losses
- Ultra-low gate charge for fast switching
- High avalanche energy capability
- Improved ESD protection
Applications
- AC-DC power supplies
- LED lighting
- ATX power supplies
- Industrial power systems
Procurement Notes
Verify the exact manufacturer designation as Fairchild Semiconductor products are now managed under ON Semiconductor. Confirm the updated part number format, which may involve replacing underscores with hyphens in official documentation. Ensure compatibility with current supply chain channels for legacy or transitioned components.
Selection Notes
Select this component for applications requiring high-efficiency power switching at elevated voltages. Consider its low gate charge for reduced switching losses and its avalanche rating for rugged operation. Evaluate thermal performance requirements against the package's heat dissipation capabilities.
Part Context
Fairchild Semiconductor was acquired by ON Semiconductor. Product lines from Fairchild, including the SuperFET series, are integrated into ON Semi's portfolio. The FCU3400N80Z belongs to the SuperFET II family, known for combining low Rds(on) with low Qg.
Replacement Considerations
Check ON Semiconductor's official cross-reference tools for direct replacements. Verify if updated part numbers with hyphenated formats are available. Ensure any substitute maintains the same voltage, current, and package specifications.
