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STMicroelectronics STP10N62K3 — Discrete Semiconductors

STP10N62K3 N-Channel MOSFET, 620 V, 8.4 A, TO-220

MPNSTP10N62K3
Obsolete

STMicroelectronics SuperMESH3™ series, N-Channel MOSFET, STP10N62K3, 620 V Vdss, 8.4 A Id, 750 mOhm Rds(on) at 10 V, 42 nC Qg, TO-220-3, -55°C to 150°C.

$2.8900Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STP10N62K3 specifications
ParameterValue
SeriesSuperMESH3™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage620 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C8.4A (Tc)
Power dissipation125W (Tc)
Operating temperature-55°C~150°C(TJ)
PackageTube
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id4.5V @ 100µA
Rds on (Max) @ id, vgs750mOhm @ 4A, 10V
Gate charge (Qg) (Max) @ vgs42 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1250 pF @ 50 V

Product details

620 V N-Channel MOSFET — the spec that decides the fit

Its 620 V drain-to-source voltage rating (Vdss) clears the 600 V bus designs commonly found in power supplies, motor drives, and lighting ballasts — no headroom question there. Gate charge is 42 nC at 10 V, a moderate figure that a standard gate-drive IC can switch without excessive drive current. Input capacitance measures 1250 pF at 50 V Vds, giving a reasonable switching speed for hard-switched topologies in the tens-of-kHz range.

The TO-220 through-hole package is straightforward to mount and replace in repair or retrofit scenarios.

Can it handle a 600 V switching supply?

Yes — the 620 V Vdss rating gives margin above a 600 V DC bus, and the 8.4 A continuous current covers many flyback and forward-converter primary-side switches. The 42 nC gate charge keeps switching losses manageable at typical SMPS frequencies. The 750 mOhm Rds(on) is on the higher side for modern designs, so check the conduction loss against your thermal budget before committing the layout.

Frequently asked questions

What is the replacement or equivalent for STP10N62K3?

No official replacement part number is listed by STMicroelectronics. A functionally similar N-Channel MOSFET with comparable Vdss, current, and Rds(on) in a TO-220 package would be the closest cross, but pin compatibility and gate drive requirements must be verified against the specific application. The surplus channel remains the direct source for this exact order code.