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STMicroelectronics STFILED625 — Discrete Semiconductors

STFILED625 N-Channel MOSFET, 620 V, 4.5 A, TO-262-3

MPNSTFILED625
Obsolete

STMicroelectronics STFILED625, N-Channel MOSFET, 620 V drain-to-source voltage, 4.5 A continuous drain current, 2 Ohm Rds(on) at 10 V, through-hole TO-262-3 Full Pack (I²Pak), -55°C to 150°C operating junction temperature.

STMicroelectronics STFILED625 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STFILED625 specifications
ParameterValue
FET typeN-Channel
MountingThrough Hole
Drain to source voltage620 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-262-3 Full Pack, I²Pak
Vgs(th) (Max) @ id4.5V @ 50µA
Rds on (Max) @ id, vgs2Ohm @ 1.9A, 10V
Gate charge (Qg) (Max) @ vgs23 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds560 pF @ 50 V

Product details

The STMicroelectronics STFILED625 is a 620 V, 4.5 A N-Channel power MOSFET in a through-hole TO-262-3 Full Pack (I²Pak) package. It is marked as Obsolete per the manufacturer's lifecycle status.

The 620 V drain-to-source voltage (Vdss) places this MOSFET in the high-voltage class, suitable for off-line power converters, flyback circuits, and 400 V bus rail applications where a derating margin is needed. The gate charge of 23 nC at 10 V is moderate, keeping driver losses manageable in medium-frequency switching. The through-hole TO-262-3 Full Pack package provides full isolation from the heatsink, simplifying mounting in metal-enclosed assemblies.

Frequently asked questions

Is the STFILED625 obsolete?

Yes, the STFILED625 carries an Obsolete lifecycle status from STMicroelectronics. It is no longer manufactured and is available only through surplus and broker channels.

What is the replacement for the STFILED625?

No official replacement part number is listed in the record. For a same-function N-Channel MOSFET in a similar voltage and current class, you would need to evaluate current-generation devices from STMicroelectronics or other vendors based on your specific Rds(on), gate charge, and package requirements.