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Product Detailed Parameters
- Description：MOSFET N-CH 20V 25A TO252
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：20 V
- Current - Continuous Drain (Id) @ 25°C：25A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：2.5V, 10V
- Rds On (Max) @ Id, Vgs：21mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id：2V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：18 nC @ 10 V
- Vgs (Max)：±16V
- Input Capacitance (Ciss) (Max) @ Vds：900 pF @ 10 V
- FET Feature：-
- Power Dissipation (Max)：2.1W (Ta), 33.3W (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 AOD476 is an N-Channel Enhancement Mode Field Effect Transistor manufactured by Alpha & Omega Semiconductor. It features a TO-252-3 surface mount package with a maximum drain-source voltage (Vdss) of 20 V and a continuous drain current (Id) of 25 A at case temperature. The device exhibits a maximum on-resistance (Rds(on)) of 21 mΩ at 10 V gate drive. Power dissipation ratings are specified as 2.1 W at ambient temperature and higher values at case temperature, supporting operation within a junction temperature range of -55°C to 150°C.
Feature Summary
- N-Channel enhancement mode construction for efficient switching applications
- Low on-resistance characteristics optimized for power management efficiency
- Surface mount TO-252-3 packaging designed for automated assembly
Applications
- DC-DC converter circuits
- Power management systems
- High-efficiency power transmission stages
Procurement Notes
Verify the specific datasheet revision and electrical parameters directly from Alpha & Omega Semiconductor official documentation before integration. Confirm that the TO-252-3 package dimensions and thermal characteristics match the target PCB layout requirements. Ensure compatibility with the intended gate drive voltage levels to maintain optimal Rds(on) performance during operation.
Selection Notes
Select this component when a low-voltage, high-current N-channel MOSFET is required in a compact surface mount form factor. The 20 V rating suits low-side switching applications where voltage spikes are minimal. Evaluate thermal management needs based on the 2.1 W ambient dissipation limit and ensure the application environment stays within the specified -55°C to 150°C operating temperature range.
Part Context
The AOD476 belongs to the AOD47 series from Alpha & Omega Semiconductor, which focuses on power management solutions. This series utilizes advanced MOSFET technology to deliver high gain and efficiency. The component is categorized under single FETs and discrete semiconductors, serving as a fundamental building block for modern electronic power conversion designs.
Replacement Considerations
Direct substitutes may include other 20 V N-Channel MOSFETs in TO-252 packages with comparable current and resistance ratings. Verify pinout compatibility and thermal performance equivalence before substitution.
