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Product Detailed Parameters
- Description：MOSFET N-CH 25V 18A/46A TO251A
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tube
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：25 V
- Current - Continuous Drain (Id) @ 25°C：18A (Ta), 46A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：5mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id：2.4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：33 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：1333 pF @ 15 V
- FET Feature：-
- Power Dissipation (Max)：2.5W (Ta), 50W (Tc)
- Operating Temperature：-55°C ~ 175°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Supplier Device Package：TO-251A
- Package / Case：TO-251-3 Stub Leads, IPAK
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Overview
The AOI472A is an N-channel enhancement mode MOSFET manufactured by Alpha & Omega Semiconductor. It features a 30V drain-source voltage rating and a maximum continuous drain current of 55A at 25°C case temperature. The device exhibits a low static drain-source on-resistance of 6mΩ maximum at VGS=10V. Packaged in a TO-252 (DPAK) surface-mount housing, it is designed for high-efficiency power switching applications requiring robust avalanche performance.
Feature Summary
- N-channel enhancement mode construction
- Low on-resistance for efficient power switching
- Robust avalanche tested reliability
Applications
- Motor drive circuits
- DC-DC converter topologies
- General power switch implementations
- Solenoid drive systems
Procurement Notes
Verify the exact part number suffix against official Alpha & Omega Semiconductor documentation to confirm pinout compatibility and specific electrical tolerances. Ensure the procurement source provides valid RoHS compliance certificates and datasheet references matching the AOI472A designation to avoid substitution errors in critical power management designs.
Selection Notes
Select this component when designing circuits requiring a 30V N-channel MOSFET with high current handling capabilities up to 55A. The low RDS(on) specification makes it suitable for minimizing conduction losses in DC-DC converters and motor control applications where thermal efficiency and compact TO-252 packaging are primary design constraints.
Part Context
This component belongs to the AOD/AOI series of N-channel power MOSFETs from Alpha & Omega Semiconductor. These devices utilize advanced silicon technology to achieve low on-resistance within standard surface-mount packages. The series is widely utilized in consumer electronics and industrial power supplies for efficient voltage regulation and load switching.
Replacement Considerations
Direct substitutes include the AOD472A and AOD472AL from Alpha & Omega Semiconductor. Verify that alternative manufacturers' parts match the 30V VDS, 55A ID, and 6mΩ RDS(on) specifications before implementation.
