Skip to main content
Log in
STMicroelectronics STP40N65M2 — Discrete Semiconductors

STMicroelectronics STP40N65M2 N-Channel MOSFET, 650 V, 32 A

MPNSTP40N65M2
Active

STMicroelectronics MDmesh™ M2 series, N-Channel MOSFET, 650 V Vdss, 32 A Id, 99 mOhm Rds(on) @ 16 A, 10 V, TO-220-3 through-hole, 150°C Tj.

$5.6700Ref. price · indicative, final on quote
STMicroelectronics STP40N65M2 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STP40N65M2 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°C32A (Tc)
Power dissipation250W (Tc)
Operating temperature150°C (TJ)
PackageTube
Vgs±25V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs99mOhm @ 16A, 10V
Gate charge (Qg) (Max) @ vgs56.5 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds2355 pF @ 100 V

Product details

The STP40N65M2: N-Channel MOSFET in a TO-220-3 through-hole package, 650 V Vdss, 32 A Id, 99 mOhm Rds(on) at 10 V.

Package and mounting — field-swappable

The TO-220-3 through-hole package is the standard three-lead power package. It bolts to a heatsink with a screw and a thermal pad or mica washer. Orientation is obvious from the tab and the bevel on the plastic body — you can swap it on site with a screwdriver and a socket wrench, no hot-air station needed. The tube shipping medium keeps the leads straight for automatic insertion.

The part is RoHS compliant per the standard ST declaration (no lead, no halogens beyond the exempted limits).

Frequently asked questions

What is the equivalent or replacement for STP40N65M2?

For a pin-compatible alternative within the same MDmesh M2 family, look at other 650 V N-channel TO-220 parts from ST with similar Rds(on) and current ratings — the STP40N65M2 is the 40 A class in that series, so a lower-current sibling like the STP30N65M2 would be a drop-in if the load allows.