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Infineon Technologies IPA65R110CFDXKSA1 — Discrete Semiconductors

Infineon IPA65R110CFDXKSA1 CoolMOS N-Channel MOSFET, 650 V

MPNIPA65R110CFDXKSA1
Obsolete

Infineon CoolMOS™ IPA65R110CFDXKSA1 N-channel MOSFET, 650 V drain-source voltage, 110 mOhm Rds(on) at 10 V gate drive, 31.2 A continuous drain current, TO-220-3 Full Pack package, -55°C to 150°C junction temperature.

$6.2500Ref. price · indicative, final on quote
Infineon Technologies IPA65R110CFDXKSA1 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IPA65R110CFDXKSA1 specifications
ParameterValue
SeriesCoolMOS™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage650 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C31.2A (Tc)
Power dissipation34.7W (Tc)
Operating temperature-55°C~150°C(TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id4.5V @ 1.3mA
Rds on (Max) @ id, vgs110mOhm @ 12.7A, 10V
Gate charge (Qg) (Max) @ vgs118 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds3240 pF @ 100 V

Product details

It was built for the primary-side switching stage of offline power supplies — think PFC boost, LLC resonant converters, and flyback topologies in 400 Vdc bus systems.

Infineon lists the IPA65R110CFDXKSA1 as Obsolete. If your design can accommodate a pin-compatible replacement, the Infineon CoolMOS 650 V family includes active successors; check the FAQ for the closest alternative.

That is the number you use for the steady-state conduction loss calculation: P = I² × R. At 10 A, that is about 11 W — well within the 34.7 W package power dissipation limit, but the junction temperature rise depends on the heatsink and ambient. The input capacitance of 3240 pF at 100 V Vds is moderate — no special driver needed, but the gate loop inductance wants a tight layout to avoid ringing.

Frequently asked questions

What is the replacement for IPA65R110CFDXKSA1?

Infineon does not list a direct successor order code in the available records. The closest pin-compatible alternative within the same CoolMOS 650 V family would be an active part like the IPA65R380E6 or IPA65R125C7 — but verify the Rds(on), gate charge, and package compatibility against your design's loss budget and switching frequency. We can help identify a suitable cross when you submit an RFQ.