Alpha & Omega Semiconductor Inc.8-SOIC (0.154", 3.90mm Width)RoHS
AO4402
MOSFET N-CH 20V 20A 8SOIC
Category
Subcategory
Transistors Fets Mosfets Single
Package
8-SOIC (0.154", 3.90mm Width)
Status
Not For New Designs
Datasheet
$1.18 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Alpha & Omega Semiconductor Inc. |
| Model | AO4402 |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| 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) | 5.5mOhm @ 20A, 4.5V |
| Vgs(th) (Max) | 1.6V @ 250µA |
| Gate Charge (Qg) | 43 nC @ 10 V |
| Input Capacitance (Ciss) | 4630 pF @ 10 V |
| Power Dissipation (Max) | 3.1W (Ta) |
| Drive Voltage | 2.5V, 4.5V |
| Supplier Device Package | 8-SOIC |
| RoHS | RoHS |
| Part Status | Not For New Designs |
Application & Notes
AO4402 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 8-SOIC (0.154", 3.90mm Width) package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 5.5mOhm @ 20A, 4.5V. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.
📖 Technical Guides for AO4402
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All Technical Specifications
| FET Type | N-Channel |
| Vgs (Max) | ±12V |
| Technology | MOSFET (Metal Oxide) |
| Vgs(th) (Max) @ Id | 1.6V @ 250µA |
| Rds On (Max) @ Id, Vgs | 5.5mOhm @ 20A, 4.5V |
| Power Dissipation (Max) | 3.1W (Ta) |
| Gate Charge (Qg) (Max) @ Vgs | 43 nC @ 10 V |
| Drain to Source Voltage (Vdss) | 20 V |
| Input Capacitance (Ciss) (Max) @ Vds | 4630 pF @ 10 V |
| Drive Voltage (Max Rds On, Min Rds On) | 2.5V, 4.5V |
| Current - Continuous Drain (Id) @ 25°C | 20A (Ta) |
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