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Product Detailed Parameters
- Description：MOSFET N-CH 30V 34A/70A TO252
- Series：AlphaMOS
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：30 V
- Current - Continuous Drain (Id) @ 25°C：34A (Ta), 70A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：3.1mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id：2.2V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：42 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：2160 pF @ 15 V
- FET Feature：-
- Power Dissipation (Max)：4.2W (Ta), 24W (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 AOD538 is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc. It features a drain-source voltage (VDS) of 30V and a continuous drain current (ID) of 34A at VGS=10V. The device exhibits a maximum on-resistance (RDS(ON)) of less than 3.1mΩ at VGS=10V and less than 4.8mΩ at VGS=4.5V. It is housed in a surface-mount TO-252 (DPAK) package.
Feature Summary
- N-Channel enhancement mode construction
- Low on-resistance for efficient power switching
- 100% UIS tested for ruggedness
Applications
- DC-DC converter applications
- Power switching circuits
- General purpose power management
Procurement Notes
Verify the obsolete status with the manufacturer before procurement planning. Confirm availability of substitute components such as the IPD70N03S4L04ATMA1 from Infineon Technologies if replacement is required. Ensure design changes accommodate any differences in pinout or thermal characteristics of alternative parts.
Selection Notes
Select this component only for legacy designs where the specific 30V/34A rating and TO-252 package are mandatory. Evaluate thermal performance requirements against the specified dissipation limits. Consider modern alternatives if new design rules permit, given the discontinued manufacturing status.
Part Context
The AOD538 belongs to the discrete semiconductor product category, specifically single N-Channel MOSFETs. It is designed for low-voltage, high-current applications requiring fast switching speeds. The component utilizes Alpha & Omega Semiconductor's proprietary process technology to achieve low RDS(ON).
Replacement Considerations
The AOD538 is obsolete. The IPD70N03S4L04ATMA1 from Infineon Technologies is listed as a similar available substitute. Verify electrical compatibility and package dimensions before substitution.
