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Product Detailed Parameters
- Description：MOSFET N-CH 500V 14A TO263
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：500 V
- Current - Continuous Drain (Id) @ 25°C：14A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：10V
- Rds On (Max) @ Id, Vgs：380mOhm @ 7A, 10V
- Vgs(th) (Max) @ Id：4.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：51 nC @ 10 V
- Vgs (Max)：±30V
- Input Capacitance (Ciss) (Max) @ Vds：2297 pF @ 25 V
- FET Feature：-
- Power Dissipation (Max)：278W (Tc)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：TO-263 (D2PAK)
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
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Overview
The AOB14N50 is an N-channel power MOSFET from Alpha & Omega Semiconductor, part of the aMOS5 series. It features a 600V drain-source voltage and a continuous drain current of 14A at case temperature. The device offers a maximum on-resistance of 0.38 ohms at Vgs=10V. It utilizes TO-263 surface-mount packaging with a thermal dissipation capacity of 378W. Key electrical parameters include a gate charge of 78nC and an input capacitance of 4010pF. The component operates within a junction temperature range of -55°C to 150°C.
Feature Summary
- Advanced high-voltage MOSFET process for robust performance in AC-DC applications
- Guaranteed avalanche capability for enhanced reliability
- Low on-resistance and capacitance for efficient switching
- Halogen-free construction available with specific suffix
Applications
- Offline power supply designs
- AC-DC converter circuits
- General-purpose high-voltage switching
Procurement Notes
Verify the exact ordering suffix when sourcing, as variations such as 'L' indicate halogen-free status which may affect availability or lead times. Confirm package type matches design requirements, as similar part numbers exist in different footprints. Ensure compatibility with existing PCB layouts if replacing legacy components. Check manufacturer documentation for updated RoHS compliance details before finalizing procurement specifications.
Selection Notes
Select this component for applications requiring 600V blocking voltage and moderate current handling up to 14A. The TO-263 package suits surface-mount designs needing efficient heat dissipation. Consider the 0.38 ohm on-resistance for conduction loss calculations. Verify that the driver can provide sufficient gate voltage to fully enhance the channel. Evaluate thermal management strategies given the 378W power dissipation rating under case conditions.
Part Context
This device belongs to Alpha & Omega Semiconductor's aMOS5 family, designed for high-performance power switching. It shares architectural similarities with the AOT14N50 but differs in packaging. The component targets offline power supplies where efficiency and ruggedness are critical. It represents a standard solution for medium-power AC-DC conversion stages requiring reliable high-voltage switching capabilities.
Replacement Considerations
The AOT14N50 serves as a functional equivalent with identical electrical characteristics but utilizes a through-hole package. Substitution requires verifying mechanical fit and thermal interface compatibility. No other direct substitutes are confirmed in public documentation.
