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STMicroelectronics STD25NF20 — Discrete Semiconductors

STD25NF20 N-Channel MOSFET, 200 V, 18 A, DPAK, AEC-Q101

MPNSTD25NF20
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STMicroelectronics STripFET™ STD25NF20, N-Channel MOSFET, 200 V Vdss, 18 A Id, 125 mOhm Rds(on) @ 10 V, DPAK (TO-252), AEC-Q101, -55°C to 175°C.

$2.4100Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STD25NF20 specifications
ParameterValue
SeriesSTripFET™
FET typeN-Channel
MountingSurface Mount
Drain to source voltage200 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C18A (Tc)
Power dissipation110W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
GradeAutomotive
PackageTape & Reel (TR) Cut Tape (CT)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
QualificationAEC-Q101
CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs125mOhm @ 10A, 10V
Gate charge (Qg) (Max) @ vgs39 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds940 pF @ 25 V

Product details

What this N-channel MOSFET brings to the board

It comes in a surface-mount DPAK (TO-252) package, which is a common footprint for mid-power automotive and industrial loads.

The 200 V Vdss rating places this part in the 150 V to 250 V class, suitable for 48 V and 72 V battery systems, 120 V intermediate bus converters, and motor-drive snubbers. The 18 A continuous current is rated at a case temperature of 25°C — in a real enclosure at 85°C ambient, expect to derate that figure by the thermal resistance (junction-to-case is not stated, but the 110 W power dissipation ceiling gives a rough guide). Input capacitance of 940 pF at 25 V drain-source is low enough that the Miller plateau is manageable, but a gate resistor in the 10 Ω to 47 Ω range is still advisable to damp ringing on the gate trace. The 4 V maximum gate threshold at 250 µA drain current means the device is fully enhanced only when the gate is driven above 4 V; logic-level 3.3 V gate signals will not turn it on hard.

The 175°C maximum junction is higher than the usual 150°C for industrial parts, giving extra headroom for high-ambient engine-bay or exhaust-adjacent mounting.

Frequently asked questions

Is the STD25NF20 AEC-Q101 qualified?

Yes, the STD25NF20 is AEC-Q101 qualified, which means it meets the automotive stress test requirements for discrete semiconductors. This qualification covers temperature cycling, high-temperature reverse bias, and humidity testing, making it suitable for under-hood and chassis-domain applications.