PC
Diodes Incorporated3-XFDFNRoHS

DMN3900UFA-7B

MOSFET N-CH 30V 550MA 3DFN

DMN3900UFA-7B by Diodes Incorporated
Subcategory

Transistors Fets Mosfets Single

Package

3-XFDFN

Status

Active

$0.42 / unit (market reference)

MOQ: 1 pcs

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Parameters

ParameterValue
BrandDiodes Incorporated
ModelDMN3900UFA-7B
Package / Case3-XFDFN
Mounting TypeSurface Mount
Operating Temperature-55°C ~ 150°C (TJ)
FET TypeN-Channel
Drain to Source Voltage (Vdss)30 V
Rds On (Max)760mOhm @ 200mA, 4.5V
Vgs(th) (Max)950mV @ 250µA
Gate Charge (Qg)0.7 nC @ 4.5 V
Input Capacitance (Ciss)42.2 pF @ 25 V
Power Dissipation (Max)390mW (Ta)
Drive Voltage1.8V, 4.5V
Supplier Device PackageX2-DFN0806-3
RoHSRoHS
Part StatusActive

Application & Notes

DMN3900UFA-7B by Diodes Incorporated is an N-channel power MOSFET rated at 30 V / N/A, commonly used in DC-DC converters, motor drivers, power supplies, and battery protection circuits. The 3-XFDFN package offers good thermal performance for SMT mounting. Key spec: Rds(on) max 760mOhm @ 200mA, 4.5V. Select gate driver voltage carefully — logic-level variants exist for direct MCU drive.

All Technical Specifications

FET TypeN-Channel
Vgs (Max)±8V
TechnologyMOSFET (Metal Oxide)
Vgs(th) (Max) @ Id950mV @ 250µA
Rds On (Max) @ Id, Vgs760mOhm @ 200mA, 4.5V
Power Dissipation (Max)390mW (Ta)
Gate Charge (Qg) (Max) @ Vgs0.7 nC @ 4.5 V
Drain to Source Voltage (Vdss)30 V
Input Capacitance (Ciss) (Max) @ Vds42.2 pF @ 25 V
Drive Voltage (Max Rds On, Min Rds On)1.8V, 4.5V
Current - Continuous Drain (Id) @ 25°C550mA (Ta)

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