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Product Detailed Parameters
- Description：MOSFET N-CH 100V 7.5A/43A TO251A
- Series：SDMOS™
- 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：7.5A (Ta), 43A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：7V, 10V
- Rds On (Max) @ Id, Vgs：24mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id：4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：42 nC @ 10 V
- Vgs (Max)：±25V
- Input Capacitance (Ciss) (Max) @ Vds：2200 pF @ 50 V
- FET Feature：-
- Power Dissipation (Max)：3W (Ta), 100W (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 AOI4126 is a 100V N-Channel MOSFET fabricated with SDMOS trench technology. It features a maximum drain-source voltage of 100V and a continuous drain current of 43A at VGS=10V. The on-resistance is less than 24mΩ at VGS=10V and less than 30mΩ at VGS=7V. The device supports a maximum junction temperature of 175°C and includes 100% UIS and Rg testing.
Feature Summary
- SDMOS trench technology for low gate charge and controlled switching behavior
- High efficiency operation suitable for PWM applications
- Universal design for load switching and general purpose uses
Applications
- PWM control circuits
- Load switching systems
- General purpose power applications
Procurement Notes
Verify the specific package variant (TO-252, TO-251A, or IPAK) required for the target PCB footprint before ordering. Confirm that the application does not exceed the absolute maximum ratings for avalanche energy or repetitive pulsed currents. Ensure thermal management aligns with the specified junction-to-ambient resistance values for the intended operating environment.
Selection Notes
Select this component when a 100V rating and high current capacity are required for switching applications. Consider the low gate charge characteristics for improved efficiency in PWM designs. Evaluate the thermal performance based on the specific board layout and copper area available for heat dissipation during continuous operation.
Part Context
This part belongs to Alpha & Omega Semiconductor's SDMOS family, utilizing advanced trench technology to combine low on-resistance with fast switching speeds. It is designed as a universal solution for various power management tasks requiring robust N-Channel performance.
Replacement Considerations
Check datasheets for alternative 100V N-Channel MOSFETs with comparable RDS(ON) and current ratings. Verify pinout compatibility if substituting within the same package type. Ensure the replacement meets the same UIS and thermal requirements.
