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Product Detailed Parameters
- Description：MOSFET N-CH 30V 3.5A SOT23-3
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：30 V
- Current - Continuous Drain (Id) @ 25°C：3.5A (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：52mOhm @ 4.2A, 10V
- Vgs(th) (Max) @ Id：1.8V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：7.2 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：340 pF @ 15 V
- FET Feature：-
- Power Dissipation (Max)：1W (Ta)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-3
- Package / Case：3-SMD, SOT-23-3 Variant
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Overview
The AO3434TS is an N-channel enhancement mode MOSFET manufactured by Alpha & Omega Semiconductor Inc. It features a drain-source voltage (Vdss) of 30 V and a continuous drain current (Id) of 3.5 A at 25°C ambient temperature. The device utilizes SOT-23-3 surface-mount packaging and operates within a junction temperature range of -55°C to 150°C. Maximum gate-source voltage (Vgs) is rated at ±20 V, with a maximum gate charge (Qg) of 12 nC at 10 V. Input capacitance (Ciss) is specified at 370 pF at 25 V.
Feature Summary
- N-channel enhancement mode construction for standard switching applications
- Advanced trench MOSFET technology designed for low on-resistance performance
- Surface-mount SOT-23-3 package optimized for space-constrained PCB layouts
Applications
- Low-side switching in portable battery-powered devices
- Load switching in consumer electronics
- DC-DC converter output stages
Procurement Notes
Verify component authenticity through authorized distribution channels due to the high prevalence of counterfeit semiconductor devices. Confirm that the received part matches the specific AO3434TS marking and package type. Check for signs of physical damage or moisture exposure prior to integration into circuit designs.
Selection Notes
Select this component for applications requiring a compact N-channel MOSFET with moderate current handling capabilities. Ensure the design accounts for the 30 V voltage rating and thermal constraints associated with the SOT-23-3 package. Evaluate gate drive requirements against the specified gate charge parameters for optimal switching efficiency.
Part Context
This component belongs to the AO34xx series of single N-channel MOSFETs from Alpha & Omega Semiconductor. These devices are engineered for general-purpose switching tasks where small form factor and efficient power management are critical. The series typically targets mobile and handheld electronic equipment markets.
Replacement Considerations
Official documentation indicates that the AO3434TS has been terminated and is no longer manufactured. Designers should consult the manufacturer's product termination notice for approved substitute part numbers to ensure supply continuity and electrical compatibility.
