Skip to main content
STMicroelectronics STD5NK52ZD — Discrete Semiconductors

STD5NK52ZD N-Channel MOSFET, 520 V, 4.4 A, SuperMESH

MPNSTD5NK52ZD
Obsolete

STMicroelectronics SuperMESH™ N-Channel MOSFET, 520 V drain-source, 4.4 A continuous drain, 1.5 Ohm Rds(on) at 10 V, DPAK (TO-252) surface mount, -55°C to 150°C junction temperature.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STD5NK52ZD specifications
ParameterValue
SeriesSuperMESH™
FET typeN-Channel
MountingSurface Mount
Drain to source voltage520 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C4.4A (Tc)
Power dissipation70W (Tc)
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Vgs(th) (Max) @ id4.5V @ 50µA
Rds on (Max) @ id, vgs1.5Ohm @ 2.2A, 10V
Gate charge (Qg) (Max) @ vgs16.9 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds529 pF @ 25 V

Product details

The STD5NK52ZD is a 520 V N-Channel MOSFET in the SuperMESH series.

Gate drive and switching — 16.9 nC total gate charge

Input capacitance is 529 pF at 25 V drain-source. Gate threshold voltage maximum is 4.5 V at 50 µA.

For sustainment of existing designs, the only sourcing channel is the independent distribution market — new-old-stock or surplus inventory.

Package and thermal — DPAK (TO-252) surface mount

The device comes in a DPAK (TO-252-3) surface-mount package with two leads plus the tab.

Frequently asked questions

Is STD5NK52ZD obsolete?

Buyers need to know if the part is end-of-life to plan for replacements or last-time buy.

What is the replacement for STD5NK52ZD?

Engineers and buyers need a drop-in or functional equivalent to continue production or repairs.

Where to buy STD5NK52ZD?

Distributor stock availability determines if the part can be sourced immediately or requires a lead time.

What are the pinout and features of STD5NK52ZD?

Design engineers verify fit and compatibility with existing PCB layouts before ordering.

What is the price of STD5NK52ZD?

Sourcing buyers compare pricing from multiple distributors to fill BOM lines at the lowest cost.

Is there a cross reference for STD5NK52ZD?

Brokers and technicians check alternative part numbers to widen sourcing options for obsolete components.