Skip to main content
Log in
STMicroelectronics STB11NK50ZT4

STB11NK50ZT4 MOSFET N-CH 500V 10A D2PAK, 520mOhm Rds(on)

MPNSTB11NK50ZT4
End of Life

STMicroelectronics SuperMESH™ STB11NK50ZT4, N-Channel MOSFET, 500 V Vdss, 10 A continuous drain, 520 mOhm Rds(on) at 10 V gate drive, 68 nC gate charge, D2PAK (TO-263) surface-mount package.

$3.1Ref. price · indicative, final on quote
STMicroelectronics STB11NK50ZT4 datasheet (PDF)
PackagingTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
RoHSROHS3 Compliant
SeriesSuperMESH™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STB11NK50ZT4 specifications
ParameterValue
SeriesSuperMESH™
FET typeN-Channel
MountingSurface Mount
Drain to source voltage500 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C10A (Tc)
Power dissipation125W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Vgs(th) (Max) @ id4.5V @ 100µA
Rds on (Max) @ id, vgs520mOhm @ 4.5A, 10V
Gate charge (Qg) (Max) @ vgs68 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1390 pF @ 25 V

Product details

500 V N-channel in D2PAK — switching supply workhorse

It comes in the D2PAK (TO-263) surface-mount package, which is a common footprint for off-line power supplies, AC-DC converters, and motor-drive auxiliary supplies where the 500 V blocking voltage handles rectified mains with margin.

This is the figure to budget for conduction loss in the steady-state — at 4.5 A the I²R loss is about 10.5 W, which must be within the 125 W power dissipation limit and the thermal capability of the board copper and heatsinking. Gate charge totals 68 nC at 10 V. The input capacitance is 1390 pF at 25 V drain-source — this sets the switching energy per cycle and influences the driver's peak current requirement. The gate threshold voltage is specified at 4.5 V maximum with 100 µA drain current.

It is ROHS3 compliant.

Frequently asked questions

What is the STB11NK50ZT4 Rds(on) value?

This is the conduction loss figure to use for thermal budgeting in a switching converter or motor drive.