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Product Detailed Parameters
- Description：MOSFET N-CH 20V 18A/45A TO252
- 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)：20 V
- Current - Continuous Drain (Id) @ 25°C：18A (Ta), 45A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：2.5V, 4.5V
- Rds On (Max) @ Id, Vgs：4.4mOhm @ 20A, 4.5V
- Vgs(th) (Max) @ Id：1.6V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：43 nC @ 10 V
- Vgs (Max)：±12V
- Input Capacitance (Ciss) (Max) @ Vds：4630 pF @ 10 V
- FET Feature：-
- Power Dissipation (Max)：2.5W (Ta), 100W (Tc)
- Operating Temperature：-55°C ~ 175°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：TO-252 (DPAK)
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
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Overview
The AOD424 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc. It features a Drain-Source Voltage (Vdss) of 20 V and a continuous Drain Current (Id) of 18 A at ambient temperature or 45 A at case temperature. The device offers a maximum on-state resistance (Rds(on)) of 4.4 mΩ at 10 V gate drive. Power dissipation is rated at 2.5 W at ambient temperature and 100 W at case temperature. It is housed in a Surface Mount TO-252 (DPAK) package with a maximum Gate-Source Voltage (Vgs) of ±12 V.
Feature Summary
- Combines advanced trench MOSFET technology with low-resistance packaging for extremely low RDS(ON).
- Designed for surface mount applications requiring high current handling capabilities.
Applications
- DC-DC converters
- Power management circuits
- Load switching applications
Procurement Notes
Verify the specific datasheet revision and electrical characteristics against your design requirements, as parameters such as RDS(on) and thermal resistance can vary based on test conditions. Confirm package compatibility and ensure that the sourcing channel provides authentic components from Alpha & Omega Semiconductor Inc. to avoid counterfeit parts affecting performance.
Selection Notes
Select this component when a low-voltage, high-current N-Channel MOSFET is required in a TO-252 package. Consider the 20 V rating and 4.4 mΩ RDS(on) for efficiency optimization. Ensure the application environment supports the specified thermal dissipation limits of 2.5 W (Ta) or 100 W (Tc) for reliable operation.
Part Context
The AOD424 belongs to the Alpha & Omega Semiconductor lineup of single N-Channel MOSFETs utilizing trench technology. It is distinct from similar models like AO4240 by its lower voltage rating (20 V vs 40 V) and different package type (TO-252 vs 8-SOIC), targeting high-current, low-voltage power switching scenarios.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Verify pinout and electrical specifications before considering any alternative components from other manufacturers.
