Rochester Electronics, LLCTO-251-3 Short Leads, IPak, TO-251AARoHS
AUIRFU4104
MOSFET N-CH 40V 42A TO251-3-21
Category
Subcategory
Transistors Fets Mosfets Single
Package
TO-251-3 Short Leads, IPak, TO-251AA
Series
Automotive, AEC-Q101, HEXFET®
Status
Active
Datasheet
$0.77 / unit (market reference)
MOQ: 388 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
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Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | AUIRFU4104 |
| Package / Case | TO-251-3 Short Leads, IPak, TO-251AA |
| Mounting Type | Through Hole |
| Operating Temperature | -55°C ~ 175°C (TJ) |
| FET Type | N-Channel |
| Drain to Source Voltage (Vdss) | 40 V |
| Rds On (Max) | 5.5mOhm @ 42A, 10V |
| Vgs(th) (Max) | 4V @ 250µA |
| Gate Charge (Qg) | 89 nC @ 10 V |
| Input Capacitance (Ciss) | 2950 pF @ 25 V |
| Power Dissipation (Max) | 140W (Tc) |
| Supplier Device Package | PG-TO-251-3-21 |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
AUIRFU4104 by Rochester Electronics, LLC is an N-channel power MOSFET rated at 40 V / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The TO-251-3 Short Leads, IPak, TO-251AA package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 5.5mOhm @ 42A, 10V. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.
📖 Technical Guides for AUIRFU4104
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All Technical Specifications
| FET Type | N-Channel |
| Vgs (Max) | ±20V |
| Technology | MOSFET (Metal Oxide) |
| Vgs(th) (Max) @ Id | 4V @ 250µA |
| Rds On (Max) @ Id, Vgs | 5.5mOhm @ 42A, 10V |
| Power Dissipation (Max) | 140W (Tc) |
| Gate Charge (Qg) (Max) @ Vgs | 89 nC @ 10 V |
| Drain to Source Voltage (Vdss) | 40 V |
| Input Capacitance (Ciss) (Max) @ Vds | 2950 pF @ 25 V |
| Current - Continuous Drain (Id) @ 25°C | 42A (Tc) |
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