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Product Detailed Parameters
- Description：MOSFET N-CH 30V 18A/54A TO251A
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tube
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：30 V
- Current - Continuous Drain (Id) @ 25°C：18A (Ta), 54A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：5.1mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id：2.3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：33 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：2200 pF @ 15 V
- FET Feature：-
- Power Dissipation (Max)：2.5W (Ta), 62W (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 AOI208 is an N-channel MOSFET manufactured by Alpha & Omega Semiconductor Inc. It features a drain-source voltage (Vdss) of 30V and continuous drain current ratings of 18A at ambient temperature (Ta) and 54A at case temperature (Tc). The device utilizes TO-251A packaging for surface mount installation. Key electrical characteristics include a maximum gate-source voltage (Vgs) of ±20V and a junction operating temperature range from -55°C to 175°C. This component is designed for power switching applications requiring reliable performance within these specified electrical limits.
Feature Summary
- N-channel enhancement mode MOSFET technology
- Surface mount construction in TO-251A package
- Logic level gate drive capability
- High current handling capacity
Applications
- DC-DC converter circuits
- Power management systems
- Load switching applications
Procurement Notes
Verify the specific manufacturer part number against official Alpha & Omega Semiconductor documentation to ensure authenticity. Confirm that the received components match the specified TO-251A package and electrical parameters. Check for any obsolescence notices or lifecycle status updates directly from the manufacturer, as availability may vary. Ensure compliance with relevant environmental standards such as RoHS if required for your specific application design.
Selection Notes
Select this component when a 30V N-channel MOSFET with high current capability in a TO-251A package is required. Consider the thermal resistance and power dissipation limits relative to your system's cooling solution. Evaluate the gate charge and threshold voltage to ensure compatibility with your driver circuitry. Compare these specifications against alternative devices if space or cost constraints necessitate different package types or voltage ratings.
Part Context
The AOI208 belongs to the Alpha & Omega Semiconductor MOSFET portfolio, specifically designed for general-purpose power switching. It complements other N-channel devices in the series, offering a balance of voltage rating and current capacity suitable for various industrial and consumer electronics applications. The TO-251A package provides a compact footprint while maintaining robust thermal performance for surface mount assembly processes.
Replacement Considerations
Consult official manufacturer cross-reference guides for verified substitutes. Ensure any replacement matches the 30V Vdss, TO-251A package, and equivalent current ratings. Verify pinout compatibility and thermal characteristics before implementation.
