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STMicroelectronics STP11N65M5 — Discrete Semiconductors

STP11N65M5 N-Channel MOSFET, 650 V, 9 A, TO-220-3

MPNSTP11N65M5
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STMicroelectronics STP11N65M5, N-Channel MOSFET, MDmesh™ V, 650 V Vdss, 9 A Id, 480 mOhm Rds(on) at 4.5 A, 10 V drive, 17 nC Qg, TO-220-3 through-hole package.

$2.0900Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STP11N65M5 specifications
ParameterValue
SeriesMDmesh™ V
FET typeN-Channel
MountingThrough Hole
Drain to source voltage650 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C9A (Tc)
Power dissipation85W (Tc)
Operating temperature150°C(TJ)
PackageTube
Vgs±25V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id5V @ 250µA
Rds on (Max) @ id, vgs480mOhm @ 4.5A, 10V
Gate charge (Qg) (Max) @ vgs17 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds644 pF @ 100 V

Product details

That combination of 480 mOhm and 17 nC is typical of a 650 V super-junction MOSFET optimised for efficiency in the 100–200 W range, not for the lowest Rds(on) at the expense of switching speed.

The maximum power dissipation of 85 W at case temperature Tc is a junction-limited figure — real-world dissipation depends on the heatsink's thermal resistance and ambient airflow.

Frequently asked questions

What is the typical gate charge of the STP11N65M5?

This moderate charge value keeps gate-drive losses low in medium-frequency switching applications up to around 100 kHz.

Can the STP11N65M5 be used for high-frequency switching?

The 17 nC gate charge and 644 pF input capacitance at 100 V drain-source bias suit it for switching frequencies up to about 100 kHz in hard-switched topologies. For higher frequencies, a MOSFET with lower gate charge and capacitance would be more appropriate.

What is the closest pin-compatible alternative to the STP11N65M5?

Within the same MDmesh V family, STMicroelectronics offers several 650 V N-channel MOSFETs in TO-220 packages with varying Rds(on) and current ratings. A direct pin-compatible alternative would share the same TO-220-3 footprint and gate-drive voltage requirements. Check the STP series for parts with similar voltage and package but different on-resistance or current levels.