Alpha & Omega Semiconductor Inc.TO-236-3, SC-59, SOT-23-3RoHS
AO3420
MOSFET N-CH 20V 6A SOT23-3L
Category
Subcategory
Transistors Fets Mosfets Single
Package
TO-236-3, SC-59, SOT-23-3
Status
Not For New Designs
$0.46 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Alpha & Omega Semiconductor Inc. |
| Model | AO3420 |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Mounting Type | Surface Mount |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| FET Type | N-Channel |
| Drain to Source Voltage (Vdss) | 20 V |
| Rds On (Max) | 24mOhm @ 6A, 10V |
| Vgs(th) (Max) | 1V @ 1mA |
| Gate Charge (Qg) | 8.8 nC @ 4.5 V |
| Input Capacitance (Ciss) | 630 pF @ 10 V |
| Power Dissipation (Max) | 1.4W (Ta) |
| Drive Voltage | 1.8V, 10V |
| Supplier Device Package | SOT-23-3 |
| RoHS | RoHS |
| Part Status | Not For New Designs |
Application & Notes
AO3420 by Alpha & Omega Semiconductor Inc. is an N-channel power MOSFET rated at 20 V / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The TO-236-3, SC-59, SOT-23-3 package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 24mOhm @ 6A, 10V. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.
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All Technical Specifications
| FET Type | N-Channel |
| Vgs (Max) | ±12V |
| Technology | MOSFET (Metal Oxide) |
| Vgs(th) (Max) @ Id | 1V @ 1mA |
| Rds On (Max) @ Id, Vgs | 24mOhm @ 6A, 10V |
| Power Dissipation (Max) | 1.4W (Ta) |
| Gate Charge (Qg) (Max) @ Vgs | 8.8 nC @ 4.5 V |
| Drain to Source Voltage (Vdss) | 20 V |
| Input Capacitance (Ciss) (Max) @ Vds | 630 pF @ 10 V |
| Drive Voltage (Max Rds On, Min Rds On) | 1.8V, 10V |
| Current - Continuous Drain (Id) @ 25°C | 6A (Ta) |
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