FQAF44N08
MOSFET N-CH 80V 35.6A TO3PF
Transistors Fets Mosfets Single
TO-3P-3 Full Pack
QFET®
Obsolete
$0.77 / unit (market reference)
MOQ: 390 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | FQAF44N08 |
| Package / Case | TO-3P-3 Full Pack |
| Mounting Type | Through Hole |
| Operating Temperature | -55°C ~ 175°C (TJ) |
| FET Type | N-Channel |
| Drain to Source Voltage (Vdss) | 80 V |
| Rds On (Max) | 34mOhm @ 17.8A, 10V |
| Vgs(th) (Max) | 4V @ 250µA |
| Gate Charge (Qg) | 50 nC @ 10 V |
| Input Capacitance (Ciss) | 1430 pF @ 25 V |
| Power Dissipation (Max) | 83W (Tc) |
| Drive Voltage | 10V |
| Supplier Device Package | TO-3PF |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
FQAF44N08 by Rochester Electronics, LLC is an N-channel power MOSFET rated at 80 V / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The TO-3P-3 Full Pack package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 34mOhm @ 17.8A, 10V. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.
📖 Technical Guides for FQAF44N08
Alternatives & Replacements
View All →FQAF10N80
MOSFET N-CH 800V 6.7A TO3PF
FQAF13N80
MOSFET N-CH 800V 8A TO3PF
FQAF17P10
MOSFET P-CH 100V 12.4A TO3PF
FQAF40N25
MOSFET N-CH 250V 24A TO3PF
FDAF69N25
MOSFET N-CH 250V 34A TO3PF
FQAF6N90
MOSFET N-CH 900V 4.5A TO3PF
All Technical Specifications
| FET Type | N-Channel |
| Vgs (Max) | ±25V |
| Technology | MOSFET (Metal Oxide) |
| Vgs(th) (Max) @ Id | 4V @ 250µA |
| Rds On (Max) @ Id, Vgs | 34mOhm @ 17.8A, 10V |
| Power Dissipation (Max) | 83W (Tc) |
| Gate Charge (Qg) (Max) @ Vgs | 50 nC @ 10 V |
| Drain to Source Voltage (Vdss) | 80 V |
| Input Capacitance (Ciss) (Max) @ Vds | 1430 pF @ 25 V |
| Drive Voltage (Max Rds On, Min Rds On) | 10V |
| Current - Continuous Drain (Id) @ 25°C | 35.6A (Tc) |
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