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STMicroelectronics STD3NK80Z-1 — Discrete Semiconductors

STD3NK80Z-1 STMicro N-Channel MOSFET, 800V 2.5A IPAK

MPNSTD3NK80Z-1
Active

STMicroelectronics SuperMESH™ series, STD3NK80Z-1, N-channel MOSFET, 800 Vdss, 2.5 A continuous drain, 4.5 Ohm Rds(on) at 10 V, TO-251-3 IPAK through-hole, -55 to 150 °C junction temperature.

$1.8900Ref. price · indicative, final on quote
STMicroelectronics STD3NK80Z-1 datasheet (PDF)
PackagingTO-251-3 Short Leads, IPak, TO-251AA
RoHSROHS3 Compliant
SeriesSuperMESH™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STD3NK80Z-1 specifications
ParameterValue
SeriesSuperMESH™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage800 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C2.5A (Tc)
Power dissipation70W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTube
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-251-3 Short Leads, IPak, TO-251AA
Vgs(th) (Max) @ id4.5V @ 50µA
Rds on (Max) @ id, vgs4.5Ohm @ 1.25A, 10V
Gate charge (Qg) (Max) @ vgs19 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds485 pF @ 25 V

Product details

800 V N-channel MOSFET for off-line power stages

It is designed for high-voltage switching applications such as flyback converters, PFC stages, and auxiliary power supplies in industrial and consumer power systems.

The wide span covers cold-start conditions in telecom shelters and engine-bay electronics.

The SuperMESH™ series is a mature STMicroelectronics platform, and the base product number STD3NK80 covers multiple package variants. Compliance documentation for RoHS and REACH is available through the standard supply chain.

Frequently asked questions

What is the closest pin-compatible alternative to STD3NK80Z-1?

Within the STMicroelectronics SuperMESH™ family, the STD3NK80Z (DPAK surface-mount) and STP3NK80Z (TO-220 through-hole) share the same die and electrical ratings but differ in package. For a direct IPAK pin-compatible substitute, the STD3NK80Z-1 is the primary offering; no second-source cross-reference is listed in the official documentation.

What compliance documentation is available for STD3NK80Z-1?

The STD3NK80Z-1 is ROHS3 compliant. Standard compliance documentation, including RoHS and REACH declarations, is provided by STMicroelectronics and is accessible through the supply chain.

What is the SuperMESH™ series?

SuperMESH™ is STMicroelectronics' high-voltage MOSFET platform optimized for low on-resistance and fast switching. The STD3NK80Z-1 is part of this series, which targets off-line power conversion applications.