Skip to main content
Log in
STMicroelectronics STW5NK100Z

STW5NK100Z N-Channel MOSFET, 1000 V, 3.5 A, TO-247-3

MPNSTW5NK100Z
End of Life

STMicroelectronics SuperMESH3™ N-Channel MOSFET, STW5NK100Z, 1000 V Vdss, 3.5 A continuous drain, 3.7 Ohm Rds(on) at 10 V, 59 nC gate charge, TO-247-3 through-hole package, -55°C to 150°C operating junction temperature.

$4.45Ref. price · indicative, final on quote
STMicroelectronics STW5NK100Z datasheet (PDF)
PackagingTO-247-3
RoHSROHS3 Compliant
SeriesSuperMESH3™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STW5NK100Z specifications
ParameterValue
SeriesSuperMESH3™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage1000 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C3.5A (Tc)
Power dissipation125W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTube
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-247-3
Vgs(th) (Max) @ id4.5V @ 100µA
Rds on (Max) @ id, vgs3.7Ohm @ 1.75A, 10V
Gate charge (Qg) (Max) @ vgs59 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1154 pF @ 25 V

Product details

1000 V N-channel MOSFET in TO-247-3

The STW5NK100Z is an N-channel MOSFET from ST's SuperMESH3 series, rated for a drain-source voltage of 1000 V and a continuous drain current of 3.5 A at 25°C case temperature. The 3.7 Ohm maximum on-resistance at 1.75 A, 10 V gate drive sets the conduction loss floor for off-line flyback or PFC stages. The TO-247-3 through-hole package handles up to 125 W power dissipation at the case, with the junction temperature range spanning -55°C to 150°C. This suits industrial and automotive auxiliary power supplies where the thermal interface to a heatsink is straightforward.

Input capacitance of 1154 pF at 25 V drain-source sets the switching loss contribution from the Miller plateau. The ±30 V gate-source rating provides margin for ringing on long gate traces.

Frequently asked questions

What are the key specifications of STW5NK100Z?

Design engineers need to verify voltage, current, and Rds(on) to ensure fit in their circuit.

Where can I purchase STW5NK100Z and what are the current stock levels?

Sourcing buyers need to find availability and lead times to avoid production delays.

Is STW5NK100Z obsolete or still in production?

Engineers and buyers need lifecycle status to assess long-term availability and support.

What are the equivalent parts or alternatives to STW5NK100Z?

When STW5NK100Z is unavailable or unsuitable, a drop-in replacement is needed for continuity.

What is the typical price of STW5NK100Z in quantity?

Procurement needs cost data for budgeting and negotiation with suppliers.

Can STW5NK100Z replace a similar part like IRFPG50?

Maintenance techs and brokers often need to cross-check compatibility for replacements.