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STMicroelectronics STP7N105K5 — Discrete Semiconductors

STP7N105K5 N-Channel MOSFET, 1050V 4A TO-220, SuperMESH5

MPNSTP7N105K5
Active

STMicroelectronics SuperMESH5™ series N-channel MOSFET, 1050 V drain-source voltage, 4 A continuous drain current, 2 Ohm on-resistance at 10 V gate drive, TO-220-3 through-hole package.

$2.9300Ref. price · indicative, final on quote
STMicroelectronics STP7N105K5 datasheet (PDF)
PackagingTO-220-3
RoHSROHS3 Compliant
SeriesSuperMESH5™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STP7N105K5 specifications
ParameterValue
SeriesSuperMESH5™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage1050 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C4A (Tc)
Power dissipation110W (Tc)
Operating temperature-55°C~150°C(TJ)
PackageTube
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id5V @ 100µA
Rds on (Max) @ id, vgs2Ohm @ 2A, 10V
Gate charge (Qg) (Max) @ vgs17 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds380 pF @ 100 V

Product details

The maximum gate charge is 17 nC at 10 V. The input capacitance is 380 pF at 100 V drain bias.

Mounting and thermal interface

The TO-220 package has a metal tab that is electrically connected to the drain. A thermal pad or mica insulator is needed between the tab and the heatsink unless the heatsink itself is at drain potential. The maximum power dissipation is 110 W at the case temperature — that is the theoretical limit with an ideal heatsink; real designs derate from there based on the thermal resistance of the interface and the ambient temperature.

Frequently asked questions

What is the Rds(on) of STP7N105K5?

The maximum on-resistance is 2 Ohm at a drain current of 2 A with a 10 V gate-to-source drive.

Is STP7N105K5 suitable for high-voltage switching power supplies?

Yes, with a 1050 V drain-source rating and 4 A current capability, it is designed for high-voltage switching applications such as flyback converters and PFC stages.

What is the closest pin-compatible alternative to STP7N105K5 in this component family?

The base product number is STP7N105, and the STP7N105K5 is the specific variant in the SuperMESH5™ series. Pin-compatible alternatives would need to share the same TO-220 footprint and 1050 V rating; check the STP7N105 family for other Rds(on) or current grades.