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Product Detailed Parameters
- Description：MOSFET N-CH SOT-23
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- FET Type：-
- Technology：-
- Drain to Source Voltage (Vdss)：-
- Current - Continuous Drain (Id) @ 25°C：-
- Drive Voltage (Max Rds On, Min Rds On)：-
- Rds On (Max) @ Id, Vgs：-
- Vgs(th) (Max) @ Id：-
- Gate Charge (Qg) (Max) @ Vgs：-
- Vgs (Max)：-
- Input Capacitance (Ciss) (Max) @ Vds：-
- FET Feature：-
- Power Dissipation (Max)：-
- Operating Temperature：-
- Grade：-
- Qualification：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
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Overview
The AO3496 is an N-Channel MOSFET from Alpha & Omega Semiconductor Inc., part of the SDMOS™ series. It features a Drain-to-Source Voltage (Vdss) of 30 V and continuous Drain Current (Id) of 14 A at ambient temperature, rising to 46 A at case temperature. The device operates with a Gate-to-Source Voltage (Vgs) limit of ±20 V and a maximum threshold voltage (Vgs(th)) of 3 V at 250 µA. Key electrical parameters include a maximum Gate Charge (Qg) of 42 nC at 10 V and Input Capacitance (Ciss) of 2440 pF at 15 V. On-resistance (Rds On) is rated at 5.6 mΩ max at 20 A and 10 V. Power dissipation reaches 2 W at Ta and 43 W at Tc. It utilizes UltraSO-8™ packaging and supports surface mount mounting types.
Feature Summary
- Utilizes advanced SDMOS™ trench technology for low on-resistance and gate charge
- Designed for surface mount applications in compact form factors
- Supports high thermal performance with elevated case temperature current ratings
Applications
- Power management circuits requiring low-side switching
- Battery protection modules
- Load switch applications in portable devices
Procurement Notes
Verify component authenticity through authorized distribution channels due to obsolete status. Confirm package integrity and pin alignment against UltraSO-8™ specifications. Review datasheet revisions for any historical parameter updates. Ensure storage conditions comply with MSL Level 1 requirements. Validate supplier documentation matches manufacturer part number AOL1458 or equivalent legacy identifiers.
Selection Notes
Select this component for designs requiring 30 V N-channel switching with moderate current capabilities. Consider thermal constraints when operating near the 14 A ambient limit. Evaluate gate drive compatibility with the 3 V threshold specification. Compare power dissipation ratings against PCB copper area availability. Assess package suitability for automated assembly processes targeting UltraSO-8™ footprints.
Part Context
The AO3496 belongs to Alpha & Omega Semiconductor’s discrete transistor portfolio, specifically within the single FET category. It represents legacy SDMOS™ technology optimized for cost-sensitive consumer electronics. The component shares architectural similarities with other 30 V N-channel devices in the AO3xxx series but offers distinct thermal characteristics via its UltraSO-8™ package configuration.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in verified sources. Consult manufacturer obsolescence notices for potential lifecycle alternatives. Verify pinout compatibility before considering cross-references from other vendors.
