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STMicroelectronics STP110N55F6 — Discrete Semiconductors

STP110N55F6 N-Channel MOSFET, 55V, 110A, TO-220, Obsolete

MPNSTP110N55F6
Obsolete

STMicroelectronics DeepGATE™, STripFET™ VI N-Channel MOSFET, STP110N55F6, 55 V Vdss, 110 A continuous drain, 5.2 mOhm Rds(on) at 10 V, TO-220-3, -55 to 175 °C.

$2.7000Ref. price · indicative, final on quote
STMicroelectronics STP110N55F6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STP110N55F6 specifications
ParameterValue
SeriesDeepGATE™, STripFET™ VI
FET typeN-Channel
MountingThrough Hole
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C110A (Tc)
Power dissipation150W (Tc)
Operating temperature-55°C~175°C(TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id4V @ 250µA
Rds on (Max) @ id, vgs5.2mOhm @ 60A, 10V
Gate charge (Qg) (Max) @ vgs120 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds8350 pF @ 25 V

Product details

55 V, 110 A N-channel in TO-220 — what this part is

At 110 A, the conduction loss at that Rds(on) would be about 63 W, which must be managed through the TO-220's thermal pad and heatsinking — the device is rated for 150 W dissipation at the case. The gate charge of 120 nC at 10 V is moderate for a 110 A MOSFET; a gate driver capable of sourcing and sinking several amps will keep switching losses under control at frequencies up to the low tens of kHz.

No official replacement part number has been published by ST; any substitute must be validated for pin-compatibility and electrical fit in the specific application.

Frequently asked questions

Where can I buy STP110N55F6?

STP110N55F6 is obsolete from the manufacturer but can be sourced through independent distribution. Submit an RFQ for current availability and pricing — quotes are confirmed at order time.

Is STP110N55F6 obsolete?

Yes, STP110N55F6 is listed as Obsolete. It is no longer manufactured by STMicroelectronics. Sourcing is through surplus and broker channels.