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Product Detailed Parameters
- Description：MOSFET N-CH 100V 70A TO251A
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tube
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：100 V
- Current - Continuous Drain (Id) @ 25°C：70A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：8.3mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id：2.3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：60 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：3130 pF @ 50 V
- FET Feature：-
- Power Dissipation (Max)：89W (Tc)
- Operating Temperature：-55°C ~ 150°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 AOI296A is an N-Channel AlphaSGT MOSFET manufactured by Alpha & Omega Semiconductor Inc. It features a 100V drain-source voltage (VDSS) rating and supports continuous drain currents of 45A at case temperature or 70A under specific thermal conditions. The device utilizes a TO-251A package with a maximum power dissipation of 35W to 89W depending on the measurement condition. Key electrical parameters include a gate threshold voltage (VGS(th)) of 2.3V max at 250µA, a maximum gate charge (Qg) of 50.5nC at 10V, and an input capacitance (Ciss) of 3800pF at 20V. The operating junction temperature range extends from -55°C to 175°C.
Feature Summary
- Utilizes AlphaSGT technology for enhanced switching performance
- N-Channel configuration optimized for power switching applications
- Robust thermal design supporting high current densities
Applications
- DC-DC converter circuits
- Power management systems
- Motor control interfaces
Procurement Notes
Verify the exact datasheet revision and ordering suffix when sourcing. Confirm that the received component matches the TO-251A package outline and pinout specifications. Ensure storage conditions comply with moisture sensitivity levels defined in the manufacturer's documentation. Cross-reference part numbers with official Alpha & Omega Semiconductor catalogs to avoid counterfeit components.
Selection Notes
Select this component for designs requiring 100V blocking capability with high current handling in a through-hole format. Evaluate thermal resistance values against the system's heat sinking capabilities. Compare gate charge requirements with driver output strength to ensure efficient switching transitions. Consider the junction temperature limits relative to ambient operating environments.
Part Context
This component belongs to the AlphaSGT series of power MOSFETs from Alpha & Omega Semiconductor. The series focuses on improving efficiency in medium-voltage applications. The TO-251A package provides a balance between current capacity and board space constraints compared to smaller surface-mount options.
Replacement Considerations
DMT10H009LH3 is identified as a potential substitute offering similar 100V ratings. Verify pin compatibility and thermal characteristics before implementation.
