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STMicroelectronics STP12NM50N — Discrete Semiconductors

STP12NM50N MDmesh II N-Channel MOSFET, 500 V, 11 A, TO-220

MPNSTP12NM50N
Obsolete

STMicroelectronics MDmesh™ II N-Channel MOSFET, STP12NM50N, 500 V drain-source, 11 A continuous drain, 380 mOhm Rds(on) at 10 V gate drive, TO-220-3 through-hole package.

$2.4000Ref. price · indicative, final on quote
STMicroelectronics STP12NM50N datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STP12NM50N specifications
ParameterValue
SeriesMDmesh™ II
FET typeN-Channel
MountingThrough Hole
Drain to source voltage500 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C11A (Tc)
Power dissipation100W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTube
Vgs±25V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs380mOhm @ 5.5A, 10V
Gate charge (Qg) (Max) @ vgs30 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds940 pF @ 50 V

Product details

Total gate charge is 30 nC at 10 V, a moderate figure that keeps the gate-drive power manageable in hard-switched topologies. The ±25 V maximum gate-source rating provides headroom for gate-drive overshoot, but the recommended drive voltage for lowest Rds(on) is 10 V.

Obsolete — sourcing the STP12NM50N today

For new designs, a pin-compatible alternative from the same MDmesh family with similar voltage and current ratings should be evaluated — the STP12NM50N's 500 V, 11 A, TO-220 footprint is a common specification, and several active MDmesh II or MDmesh V parts fit that envelope.

Frequently asked questions

What is the replacement for STP12NM50N?

The lifecycle record does not list an official successor. A functionally compatible replacement should match the 500 V drain-source, 11 A continuous drain, TO-220 package, and N-channel polarity. Several active STMicroelectronics MDmesh V parts in the same package and voltage class are worth evaluating. Contact us with your application details for cross-reference assistance.

Where can I buy the STP12NM50N?

The STP12NM50N is available through independent distribution. Submit a request for current pricing and availability — no minimum quantity required.