Linear Integrated Systems, Inc.8-VFDFN Exposed PadRoHS
4391DFN 8L
LOW NOISE, N-CHANNEL JFET SWITCH
Category
Subcategory
Transistors Jfets
Package
8-VFDFN Exposed Pad
Status
Active
Datasheet
$2.00 / unit (market reference)
MOQ: 10 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Linear Integrated Systems, Inc. |
| Model | 4391DFN 8L |
| Package / Case | 8-VFDFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| FET Type | N-Channel |
| Drain to Source Voltage (Vdss) | 400 mV |
| Input Capacitance (Ciss) | 13pF @ 20V |
| Power Dissipation (Max) | 300 mW |
| Supplier Device Package | 8-DFN (2x2) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
4391DFN 8L by Linear Integrated Systems, Inc. is an N-channel power MOSFET rated at 400 mV / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The 8-VFDFN Exposed Pad package offers good thermal performance for SMT mounting. Key spec: Rds(on) max N/A. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.
📖 Technical Guides for 4391DFN 8L
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All Technical Specifications
| FET Type | N-Channel |
| Power - Max | 300 mW |
| Resistance - RDS(On) | 30 Ohms |
| Drain to Source Voltage (Vdss) | 400 mV |
| Voltage - Breakdown (V(BR)GSS) | 40 V |
| Input Capacitance (Ciss) (Max) @ Vds | 13pF @ 20V |
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