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STMicroelectronics STP5NK65ZFP — Discrete Semiconductors

STP5NK65ZFP N-Channel MOSFET, 650 V, 4.5 A, TO-220FP

MPNSTP5NK65ZFP
Obsolete

STMicroelectronics SuperMESH™ series, N-Channel MOSFET, 650 V Vdss, 4.5 A continuous drain, 1.8 Ohm Rds(on) at 10 V, TO-220-3 Full Pack through hole, -55°C to 150°C junction.

$1.7000Ref. price · indicative, final on quote
STMicroelectronics STP5NK65ZFP datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STP5NK65ZFP specifications
ParameterValue
SeriesSuperMESH™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage650 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C4.5A (Tc)
Power dissipation25W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTube
Vgs±30V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id4.5V @ 50µA
Rds on (Max) @ id, vgs1.8Ohm @ 2.1A, 10V
Gate charge (Qg) (Max) @ vgs35 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds680 pF @ 25 V

Product details

650 V N-channel in an isolated full-pack — what this part was built for

The STP5NK65ZFP is a 650 V N-channel MOSFET from STMicroelectronics' SuperMESH™ series, in the TO-220FP full-pack package — a fully isolated plastic case that eliminates the need for an insulating washer or pad between the device and the heatsink.

For production runs that still require this exact part, the only channel is independent distribution — sealed reels or tube stock from surplus and end-of-line lots. Date-code spread and original packaging condition are the key diligence points when sourcing obsolete MOSFETs; a sealed factory tube with consistent date codes from a single production run is the preferred lot.

Gate drive and switching considerations

The STP5NK65ZFP requires a 10 V gate drive for the rated on-resistance. Gate threshold voltage is 4.5 V maximum at 50 µA drain current.

Frequently asked questions

What is the replacement for STP5NK65ZFP?

The STP5NK65Z (non-FP) uses the same die and has identical electrical ratings but comes in a standard TO-220 package that requires an insulating washer. If your design needs the isolated TO-220FP footprint, there is no direct pin-compatible replacement listed; the STP5NK65ZFP itself is the specific variant for that mechanical fit.