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STMicroelectronics STF21NM60ND — Discrete Semiconductors

STF21NM60ND N-Channel MOSFET, 600V 17A, TO-220FP, Obsolete

MPNSTF21NM60ND
Obsolete

STMicroelectronics FDmesh™ II, N-Channel MOSFET, 600 V drain-source, 17 A continuous drain at 25°C, 220 mOhm Rds(on) at 10 V, TO-220-3 Full Pack through-hole package.

$6.0700Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STF21NM60ND specifications
ParameterValue
SeriesFDmesh™ II
FET typeN-Channel
MountingThrough Hole
Drain to source voltage600 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C17A (Tc)
Power dissipation30W (Tc)
Operating temperature150°C(TJ)
PackageTube
Vgs±25V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id5V @ 250µA
Rds on (Max) @ id, vgs220mOhm @ 8.5A, 10V
Gate charge (Qg) (Max) @ vgs60 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1800 pF @ 50 V

Product details

The STF21NM60ND is an STMicroelectronics N-channel power MOSFET from the FDmesh™ II series, built for high-voltage switching in power supplies, lighting ballasts, and motor drives. Gate charge is 60 nC at 10 V, a moderate figure that a standard gate-drive IC can handle without excessive switching loss. Input capacitance is 1800 pF at 50 V drain-source, giving a rough idea of the drive current needed for a target rise time.

TO-220FP full-pack — isolated tab, no heatsink pad

The TO-220-3 Full Pack (TO-220FP) package has a fully molded, isolated backside — no exposed metal tab. The 30 W dissipation ceiling at case temperature reflects that. Mounting torque and screw length matter: the plastic body can crack if over-torqued.

STMicroelectronics lists the STF21NM60ND as obsolete. For a sustainment program or repair depot, the replacement search should start with ST's current FDmesh™ and MDmesh™ series parts in the same voltage and current class — 600 V, 17 A, TO-220FP — but every candidate must be checked for pin-compatibility, gate charge, and on-resistance.

Frequently asked questions

Where can I buy STF21NM60ND?

The STF21NM60ND is obsolete and no longer in production.

What is the replacement for STF21NM60ND?

No official replacement order code is listed by STMicroelectronics. The functional replacement should be a 600 V, 17 A N-channel MOSFET in a TO-220FP package from ST's current FDmesh™ or MDmesh™ series, such as the STFxxNM60N or STFxxN60M2 families. Verify Rds(on), gate charge, and thermal ratings against the original design.