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STMicroelectronics STF7N95K3 — Discrete Semiconductors

STF7N95K3 N-Channel MOSFET, 950V, 7.2A, TO-220FP

MPNSTF7N95K3
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STMicroelectronics STF7N95K3, SuperMESH3™, N-Channel MOSFET, 950 V Vdss, 7.2 A Id, 1.35 Ohm Rds(on) @ 10 V, TO-220-3 Full Pack, -55°C to 150°C.

$4.0100Ref. price · indicative, final on quote
STMicroelectronics STF7N95K3 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STF7N95K3 specifications
ParameterValue
SeriesSuperMESH3™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage950 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C7.2A (Tc)
Power dissipation35W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTube
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id5V @ 100µA
Rds on (Max) @ id, vgs1.35Ohm @ 3.6A, 10V
Gate charge (Qg) (Max) @ vgs33 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1031 pF @ 100 V

Product details

950 V N-channel MOSFET in a full-pack TO-220

The STMicroelectronics STF7N95K3 is a 950 V N-channel power MOSFET from the SuperMESH3™ series, built with a planar-stripe layout that balances on-resistance and ruggedness for high-voltage offline converters and industrial power supplies. The TO-220 Full Pack isolates the tab electrically, so no insulating pad is needed when bolting to a grounded heatsink — a real time-saver in assembly.

What the 950 V rating and 1.35 Ohm Rds(on) mean for your design

The 950 V Vdss rating provides headroom for ringing spikes from transformer leakage inductance. The 1.35 Ohm Rds(on) at 10 V drive is the conduction loss you budget for.

Gate drive and switching: 33 nC total gate charge

The 150°C max junction is the hard limit — derate the 7.2 A current rating above 25°C case temperature per the datasheet's thermal derating curve. The SuperMESH3™ process is avalanche-rated, but the ledger doesn't specify the single-pulse energy; treat it as a ruggedness feature, not a design-in number, and clamp the drain voltage with a snubber or RCD clamp if the leakage inductance spike exceeds the 950 V rating.

Frequently asked questions

How does STF7N95K3 compare to STF7N95K2?

The STF7N95K2 is a lower-spec variant within the same SuperMESH3™ family, typically with a higher Rds(on) and possibly lower current rating. The K3 version offers lower conduction losses for the same 950 V blocking voltage and 7.2 A current rating, making it a better fit for efficiency-sensitive designs. Both share the same TO-220FP package and pinout.