FQL50N40
MOSFET N-CH 400V 50A TO264-3
Transistors Fets Mosfets Single
TO-264-3, TO-264AA
QFET®
Obsolete
$7.16 / unit (market reference)
MOQ: 42 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | FQL50N40 |
| Package / Case | TO-264-3, TO-264AA |
| Mounting Type | Through Hole |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| FET Type | N-Channel |
| Drain to Source Voltage (Vdss) | 400 V |
| Rds On (Max) | 75mOhm @ 25A, 10V |
| Vgs(th) (Max) | 5V @ 250µA |
| Gate Charge (Qg) | 210 nC @ 10 V |
| Input Capacitance (Ciss) | 7500 pF @ 25 V |
| Power Dissipation (Max) | 460W (Tc) |
| Drive Voltage | 10V |
| Supplier Device Package | HPM F2 |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
FQL50N40 by Rochester Electronics, LLC is an N-channel power MOSFET rated at 400 V / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The TO-264-3, TO-264AA package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 75mOhm @ 25A, 10V. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.
📖 Technical Guides for FQL50N40
Alternatives & Replacements
View All →NTY100N10G
MOSFET N-CH 100V 123A TO264
IXTK90P20P
MOSFET P-CH 200V 90A TO264
IXTK170P10P
MOSFET P-CH 100V 170A TO264
IXFK24N100Q3
MOSFET N-CH 1000V 24A TO264AA
IXTK5N250
MOSFET N-CH 2500V 5A TO264
IXFK27N80Q
MOSFET N-CH 800V 27A TO264AA
All Technical Specifications
| FET Type | N-Channel |
| Vgs (Max) | ±30V |
| Technology | MOSFET (Metal Oxide) |
| Vgs(th) (Max) @ Id | 5V @ 250µA |
| Rds On (Max) @ Id, Vgs | 75mOhm @ 25A, 10V |
| Power Dissipation (Max) | 460W (Tc) |
| Gate Charge (Qg) (Max) @ Vgs | 210 nC @ 10 V |
| Drain to Source Voltage (Vdss) | 400 V |
| Input Capacitance (Ciss) (Max) @ Vds | 7500 pF @ 25 V |
| Drive Voltage (Max Rds On, Min Rds On) | 10V |
| Current - Continuous Drain (Id) @ 25°C | 50A (Tc) |
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