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STMicroelectronics STF12N65M2 — Discrete Semiconductors

STF12N65M2 MOSFET, N-Ch 650V 8A TO-220FP, STMicroelectronics

MPNSTF12N65M2
Active

STMicroelectronics STF12N65M2, MDmesh™ M2 series, N-Channel MOSFET, 650 V, 8 A, TO-220-3 Full Pack, Through Hole, Tube.

$1.9600Ref. price · indicative, final on quote
STMicroelectronics STF12N65M2 datasheet (PDF)
PackagingTO-220-3 Full Pack
RoHSROHS3 Compliant
SeriesMDmesh™ M2
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STF12N65M2 specifications
ParameterValue
SeriesMDmesh™ M2
FET typeN-Channel
MountingThrough Hole
Drain to source voltage650 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C8A (Tc)
Power dissipation25W (Tc)
Operating temperature-55°C~150°C(TJ)
PackageTube
Vgs±25V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs500mOhm @ 4A, 10V
Gate charge (Qg) (Max) @ vgs16.5 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds535 pF @ 100 V

Product details

Gate charge and switching budget

The STF12N65M2: Input capacitance (Ciss) is 535 pF at 100 V drain bias, which combined with the gate resistance sets the turn-on and turn-off delay. A 10 Ω external gate resistor yields an RC time constant of roughly 5 ns.

Thermal and package integration

Housed in a TO-220 Full Pack (TO-220FP) with the die electrically isolated from the mounting tab — no insulating washer needed between the device and the heatsink. Maximum power dissipation is 25 W at case temperature. The through-hole package suits point-to-point wiring or PCB layouts with adequate copper area for thermal spreading.

Frequently asked questions

Where can I buy STF12N65M2 and get a price?

The STF12N65M2 is an active part sourced through independent distribution.

What is the closest functional alternative to STF12N65M2?

Within the same MDmesh family, the STF18N65M2 is a higher-current sibling (12 A, 330 mOhm) in the same TO-220FP package and 650 V rating. For a lower-voltage option, the STF12N50DM2 (500 V, 350 mOhm) shares the same pinout and package but has a different gate threshold — verify the drive circuit before substituting.