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STMicroelectronics STP10N65K3 — Discrete Semiconductors

STP10N65K3 N-Channel MOSFET, 650 V, 10 A, TO-220

MPNSTP10N65K3
Obsolete

STMicroelectronics STP10N65K3, N-Channel MOSFET, 650 Vdss, 10 A Id, 1 Ohm Rds(on) at 10 V, 42 nC Qg, TO-220-3, Tube.

STMicroelectronics STP10N65K3 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STP10N65K3 specifications
ParameterValue
FET typeN-Channel
MountingThrough Hole
Drain to source voltage650 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C10A (Tc)
Power dissipation150W (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, vgs1Ohm @ 3.6A, 10V
Gate charge (Qg) (Max) @ vgs42 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1180 pF @ 25 V

Product details

650 V, 10 A N-channel — where it fits in the power stage

The STMicroelectronics STP10N65K3 is a 650 V, 10 A N-channel power MOSFET in a through-hole TO-220-3 package. It is part of the SuperMESH3 family, designed for high-voltage switching applications such as offline power supplies, AC-DC converters, and PFC stages.

The 650 V drain-source breakdown voltage gives adequate margin for universal-input (85–265 VAC) offline converters, where the rectified DC bus peaks around 375 V. The 1 Ohm Rds(on) at 10 V gate drive is specified at 3.6 A drain current; at lower gate voltages (e.g., 5 V logic-level drive) the on-resistance roughly doubles, so a 10 V gate supply is strongly recommended to achieve the rated performance.

Frequently asked questions

What is a replacement for STP10N65K3?

For a pin-compatible alternative in the same voltage and current class, consider the STP10N65K3's SuperMESH3 family siblings such as the STP10N65K3 itself — but since the part is obsolete, the most practical path is to source the original part through independent channels. A design-in replacement would require reviewing ST's current 650 V N-channel MOSFET portfolio for a TO-220 device with similar Rds(on) and gate charge.

Does STP10N65K3 come in SMD package?

No. The STP10N65K3 is a through-hole device in a TO-220-3 package. No SMD variant is listed in the specifications.