Skip to main content
Log in
STMicroelectronics STFI15NM65N — Discrete Semiconductors

STFI15NM65N N-Channel MOSFET, 650 V, 12 A, MDmesh II

MPNSTFI15NM65N
Obsolete

STMicroelectronics MDmesh™ II N-Channel MOSFET, STFI15NM65N, 650 V Vdss, 12 A Id, 380 mOhm Rds(on) at 10 V, I2PAKFP (TO-262) through-hole package, -55°C to 150°C junction temperature.

$2.5400Ref. price · indicative, final on quote
STMicroelectronics STFI15NM65N datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STFI15NM65N specifications
ParameterValue
SeriesMDmesh™ II
FET typeN-Channel
MountingThrough Hole
Drain to source voltage650 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C12A (Tc)
Power dissipation30W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTube
Vgs±25V
TechnologyMOSFET (Metal Oxide)
CaseTO-262-3 Full Pack, I²Pak
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs380mOhm @ 6A, 10V
Gate charge (Qg) (Max) @ vgs33.3 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds983 pF @ 50 V

Product details

650 V, 12 A N-channel MOSFET in I2PAKFP — what you need to know

The STMicroelectronics STFI15NM65N is an N-channel power MOSFET built on the MDmesh™ II technology, a multi-drain mesh layout that reduces on-resistance while keeping the 650 V drain-source breakdown. The full-pack package isolates the back metal, so no insulating pad is needed between the tab and the heatsink — a time-saver on the assembly line, but the thermal path is through the plastic, so the 30 W ceiling is real and not conservative.

The STFI15NM65N is listed as Obsolete. ST has moved on from this MDmesh II generation. For existing BOMs, source through surplus or last-time-buy channels.

Gate charge and switching — the 33.3 nC number

Gate charge is 33.3 nC at 10 V. Input capacitance is 983 pF at 50 V.

The through-hole full-pack package isolates the tab electrically.

Frequently asked questions

Is STFI15NM65N obsolete?

Yes, the STFI15NM65N is listed as Obsolete. ST has discontinued this MDmesh II generation part. For new designs, look at current MDmesh V or K5 series parts; for existing BOMs, source through surplus or last-time-buy channels.

What is the Rds(on) of STFI15NM65N?

At lower gate voltages the on-resistance rises significantly — 10 V is the recommended drive level.