AO3401A
Single FETs, MOSFETs
Technical Specifications
| Type | Description |
|---|---|
| Drain-Source Voltage | 30 V |
| Continuous Drain Current | 4 A |
| Chan Type | - |
| Output Capacitance(Coss) | 80pF |
| Gate Threshold Voltage (Vgs(th)) | 900mV |
| Reverse Transfer Capacitance (Crss@Vds) | 55pF |
| Number | 1 P-Channel |
| Type | Description |
|---|---|
| Input Capacitance(Ciss) | 645pF |
| Operating Temp | - |
| Pd W | - |
| Rds On Ohm | 47mOhm@10V;60mOhm@4.5V;85mOhm@2.5V |
| Gate Charge C | 14nC@10V |
| Type | - |
| Package / Case | SOT-23 |
Product Introduction
The AO3401A utilizes advanced trench technology to deliver excellent RDS(ON), low gate charge, and a gate operating voltage as low as 2.5V. This device is suitable for use as a load switch or in other general-purpose applications.
Datasheet
Alternative Parts
Common AO3401A alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8541290000 |
| USHTS | 8541290095 |
| TARIC | 8541290000 |
| Type | Details |
|---|---|
| CAHTS | 8541290000 |
| BRHTS | 85412910 |
| INHTS | 85412900 |
| MXHTS | 8541.29.99 |
Frequently Asked Questions
What Gate-Source Voltage Is Required to Fully Enhance the AO3401A, and Is It Logic-Level Compatible for Direct MCU Drive?
The AO3401A is a P-channel device, so the gate must be driven below the source by at least the gate threshold voltage to turn on. As a SOT-23 P-channel MOSFET rated at 30V / 4A, the AO3401A is designed for operation in circuits where the source is tied to the positive supply rail. For logic-level drive from a 3.3V or 5V microcontroller, a proper high-side switching topology using an N-channel driver or level-shift circuit is typically required, since a P-channel MOSFET's gate must be pulled low relative to its source. Consult the AO3401A datasheet directly for specific Vgs(th) and Rds(on) values.
What Are the Key Electrical Parameters of the AO3401A P-Channel MOSFET, and What Applications Is It Best Suited For?
The AO3401A is a P-channel MOSFET from Alpha and Omega Semiconductor (AOS), rated at Vds = -30V (drain-source voltage) and Id = -4A (continuous drain current), housed in a SOT-23 package for surface-mount assembly. It is described as a 30V 4A surface-mount device. The SOT-23 footprint keeps the component highly compact, making the AO3401A well-suited for high-side switching in load switches, USB power management, battery protection circuits, portable consumer electronics, and reverse polarity protection applications where a P-channel device driven by a microcontroller GPIO or N-channel gate driver is required.
Sourcing Information
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