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STMicroelectronics STF6N65K3 — Discrete Semiconductors

STF6N65K3 N-Channel MOSFET, 650V, 5.4A, TO-220FP

MPNSTF6N65K3
Active

STMicroelectronics SuperMESH3™ STF6N65K3, N-Channel MOSFET, 650V Vdss, 5.4A Id, 1.3 Ohm Rds(on), 35 nC Qg, TO-220FP, Through Hole, 150°C Tj.

$2.3400Ref. price · indicative, final on quote
STMicroelectronics STF6N65K3 datasheet (PDF)
PackagingTO-220-3 Full Pack
RoHSROHS3 Compliant
SeriesSuperMESH3™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STF6N65K3 specifications
ParameterValue
SeriesSuperMESH3™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage650 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C5.4A (Tc)
Power dissipation30W (Tc)
Operating temperature150°C (TJ)
PackageTube
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id4.5V @ 50µA
Rds on (Max) @ id, vgs1.3Ohm @ 2.8A, 10V
Gate charge (Qg) (Max) @ vgs35 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds880 pF @ 50 V

Product details

650 V, 5.4 A N-channel in a fully isolated TO-220

Typical applications include offline switch-mode power supplies, AC-DC converters, and power factor correction stages where 650 V blocking and moderate current handling are required.

On-resistance is specified at 1.3 Ohm maximum at 2.8 A drain current with 10 V gate drive — this is the conduction loss figure for the worst-case junction temperature.

It is ROHS3 compliant, and the base product number STF6 indicates a family of 650 V SuperMESH3 devices sharing the same TO-220FP footprint.

Frequently asked questions

Does the STF6N65K3 come in a TO-220 package?

Yes, the STF6N65K3 is supplied in a TO-220 Full Pack (TO-220FP) package, which is a fully isolated variant of the standard TO-220.