AO3402

$0.39

Description：MOSFET N-CH 30V 4A SOT23-3L
Series：-
Mfr：Alpha & Omega Semiconductor Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:dd6b533d4149 Category: Single FETs, MOSFETs Brand: Alpha & Omega Semiconductor Inc.

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Product introduction

Product Detailed Parameters

Description：MOSFET N-CH 30V 4A SOT23-3L
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：4A (Ta)
Drive Voltage (Max Rds On, Min Rds On)：2.5V, 10V
Rds On (Max) @ Id, Vgs：55mOhm @ 4A, 10V
Vgs(th) (Max) @ Id：1.4V @ 250µA
Gate Charge (Qg) (Max) @ Vgs：4.34 nC @ 4.5 V
Vgs (Max)：±12V
Input Capacitance (Ciss) (Max) @ Vds：390 pF @ 15 V
FET Feature：-
Power Dissipation (Max)：1.4W (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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AO3402

Overview

The AO3402 is an N-channel enhancement mode field effect transistor manufactured by Alpha & Omega Semiconductor Inc. It utilizes advanced trench technology to deliver low gate charge and excellent on-resistance, supporting operation with gate voltages as low as 2.5V. The device features a maximum drain-source voltage of 30V and a continuous drain current of 4A at 25°C. Key electrical parameters include a maximum gate-source voltage of ±12V, a threshold voltage of 1.4V at 250µA, and a maximum power dissipation of 1.4W. It operates within a temperature range of -55°C to 150°C junction temperature.

Feature Summary

Advanced trench technology provides low gate charge and excellent on-resistance for efficient switching performance.
Capable of operation with gate voltages as low as 2.5V, suitable for low-power drive applications.
Designed for use as a load switch or in pulse width modulation (PWM) applications.

Applications

Load switching circuits
Pulse width modulation (PWM) control

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package variations and environmental compliance status. Confirm RoHS3 compliance and lead-free packaging details directly from official documentation before procurement. Ensure the component status is reviewed as it may be marked as not recommended for new designs.

Selection Notes

Select this component when a low-cost N-channel MOSFET with 30V rating and SOT-23 footprint is required. Consider its 4A current capability and low gate charge for general-purpose switching tasks. Evaluate thermal management requirements given the 1.4W power dissipation limit in surface mount packages.

Part Context

The AO3402 belongs to the AO34 series of N-channel and P-channel MOSFETs produced by Alpha & Omega Semiconductor. This family is widely used in portable electronics and battery-powered devices due to the small SOT-23-3 package size and efficient power handling characteristics typical of trench technology implementations.