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Product Detailed Parameters
- Description：MOSFET N CH 30V 18A 8SOIC
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：30 V
- Current - Continuous Drain (Id) @ 25°C：18A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：6.5mOhm @ 18A, 10V
- Vgs(th) (Max) @ Id：2.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：36 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：1900 pF @ 15 V
- FET Feature：-
- Power Dissipation (Max)：3.1W (Ta)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Package / Case：8-SOIC (0.154", 3.90mm Width)
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Overview
The AO4494 is an N-Channel Enhancement Mode Field Effect Transistor manufactured by Alpha & Omega Semiconductor Inc. It utilizes advanced trench technology to deliver low on-resistance and gate charge characteristics. The device features a drain-source voltage rating of 30V and supports continuous current handling capabilities suitable for power switching applications. It is housed in an 8-SOIC surface-mount package, designed for efficient thermal performance and compact circuit board integration.
Feature Summary
- Advanced trench technology implementation for optimized electrical performance
- Low on-resistance and reduced gate charge for improved efficiency
- Enhancement mode operation for standard logic control compatibility
Applications
- Load switch circuits
- Pulse Width Modulation (PWM) applications
- General purpose power switching
Procurement Notes
Verify the specific ordering suffix when sourcing components. Confirm whether the procurement request requires the standard lead-free version or the green product variant, as these designations may affect packaging or environmental compliance documentation. Ensure the received parts match the exact alphanumeric designation to avoid functional discrepancies in sensitive designs.
Selection Notes
Select this component for designs requiring a 30V N-channel MOSFET with moderate current handling in an 8-pin surface-mount form factor. Evaluate the thermal requirements against the package dissipation limits. Consider the gate charge specifications relative to the driving circuit's switching frequency constraints to ensure optimal dynamic performance without excessive drive losses.
Part Context
This part belongs to the Alpha & Omega Semiconductor portfolio of discrete semiconductors. The manufacturer specializes in power management solutions utilizing proprietary trench technologies. The AO4494 represents a standard enhancement mode field effect transistor within their catalog, targeting general-purpose switching needs in consumer and industrial electronics sectors.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout compatibility and absolute maximum ratings before considering any alternative devices from other manufacturers.
