Alpha & Omega Semiconductor Inc.TO-251-3 Stub Leads, IPakRoHS
AOI9N50
MOSFET N-CH 500V 9A TO251A
Category
Subcategory
Transistors Fets Mosfets Single
Package
TO-251-3 Stub Leads, IPak
Status
Active
$0.50 / unit (market reference)
MOQ: 3500 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Alpha & Omega Semiconductor Inc. |
| Model | AOI9N50 |
| Package / Case | TO-251-3 Stub Leads, IPak |
| Mounting Type | Through Hole |
| Operating Temperature | -50°C ~ 150°C (TJ) |
| FET Type | N-Channel |
| Drain to Source Voltage (Vdss) | 500 V |
| Rds On (Max) | 860mOhm @ 4.5A, 10V |
| Vgs(th) (Max) | 4.5V @ 250µA |
| Gate Charge (Qg) | 24 nC @ 10 V |
| Input Capacitance (Ciss) | 1160 pF @ 25 V |
| Power Dissipation (Max) | 178W (Tc) |
| Drive Voltage | 10V |
| Supplier Device Package | TO-251A |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
AOI9N50 by Alpha & Omega Semiconductor Inc. is an N-channel power MOSFET rated at 500 V / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The TO-251-3 Stub Leads, IPak package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 860mOhm @ 4.5A, 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) | ±30V |
| Technology | MOSFET (Metal Oxide) |
| Vgs(th) (Max) @ Id | 4.5V @ 250µA |
| Rds On (Max) @ Id, Vgs | 860mOhm @ 4.5A, 10V |
| Power Dissipation (Max) | 178W (Tc) |
| Gate Charge (Qg) (Max) @ Vgs | 24 nC @ 10 V |
| Drain to Source Voltage (Vdss) | 500 V |
| Input Capacitance (Ciss) (Max) @ Vds | 1160 pF @ 25 V |
| Drive Voltage (Max Rds On, Min Rds On) | 10V |
| Current - Continuous Drain (Id) @ 25°C | 9A (Tc) |
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