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AOI5N40 is listed in the Mosfets range at ChipApex. The manufacturer field lists Alpha & Omega Semiconductor Inc.. Its product description is MOSFET N-CH 400V 4.2A TO251A. Review the specifications below when checking this part for your BOM.
Mosfets specifications for AOI5N40
- Description：MOSFET N-CH 400V 4.2A TO251A
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tube
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：400 V
- Current - Continuous Drain (Id) @ 25°C：4.2A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：10V
- Rds On (Max) @ Id, Vgs：1.6Ohm @ 1A, 10V
- Vgs(th) (Max) @ Id：4.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：8.5 nC @ 10 V
- Vgs (Max)：±30V
- Input Capacitance (Ciss) (Max) @ Vds：400 pF @ 25 V
- FET Feature：-
- Power Dissipation (Max)：78W (Tc)
- Operating Temperature：-50°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Supplier Device Package：TO-251A
- Package / Case：TO-251-3 Stub Leads, IPAK
Mosfets datasheet and documents for AOI5N40
Mosfets Overview
The AOI5N40 is a 400V N-Channel MOSFET fabricated using an advanced high voltage process. It features a maximum drain current of 4.2A at VGS=10V and a typical on-resistance (RDS(ON)) of 1.6W under the same conditions. The device supports a peak diode recovery dv/dt of 5V/ns and operates within a junction temperature range of -50°C to 150°C. It includes guaranteed avalanche capability, having undergone 100% UIS testing.
Mosfets Feature Summary
- Advanced high voltage MOSFET process designed for robustness in AC-DC applications
- Guaranteed avalanche capability with 100% UIS testing verification
- Low gate charge and capacitance values for efficient switching performance
Mosfets Applications
- Offline power supply designs
- AC-DC converter circuits
- General purpose switching applications
Mosfets Procurement Notes
Verify the specific package type required, as the datasheet covers both AOD5N40 and AOI5N40 variants which may differ in physical footprint or thermal characteristics. Confirm that the selected component meets all absolute maximum ratings for the intended operating environment. Ensure compliance with export control regulations and legal requirements applicable to the destination region before finalizing procurement.
Mosfets Selection Notes
Select this component for designs requiring a 400V rating with moderate current handling capabilities up to 4.2A. Consider the thermal resistance values when designing heatsinking solutions, particularly for continuous operation scenarios. Evaluate the switching parameters against the target frequency requirements to ensure efficiency targets are met without excessive heat generation.
Mosfets Part Context
This part belongs to Alpha & Omega Semiconductor's lineup of discrete power MOSFETs. It is engineered to replace older technologies in offline power supplies by offering improved performance metrics such as lower RDS(ON) and faster switching speeds. The device integrates body diode characteristics suitable for hard-switching topologies commonly found in consumer and industrial power adapters.
Mosfets Replacement Considerations
Check pinout compatibility if substituting into existing PCB layouts. Verify that the replacement device meets or exceeds the 400V breakdown voltage and 4.2A current rating. Ensure thermal management strategies remain adequate given potential differences in thermal resistance between original and substitute parts.
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