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Infineon Technologies IPA60R125CPXKSA1 — Discrete Semiconductors

Infineon IPA60R125CPXKSA1 CoolMOS N-Ch MOSFET, 650V 125mOhm

MPNIPA60R125CPXKSA1
NRND

Infineon CoolMOS™ IPA60R125CPXKSA1 N-channel MOSFET, 650 V drain-source, 125 mOhm Rds(on) at 16 A, 10 V gate drive, TO-220-3 Full Pack through-hole package, -55°C to 150°C junction temperature.

$5.2100Ref. price · indicative, final on quote
Infineon Technologies IPA60R125CPXKSA1 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IPA60R125CPXKSA1 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°C25A (Tc)
Power dissipation35W (Tc)
Operating temperature-55°C~150°C(TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id3.5V @ 1.1mA
Rds on (Max) @ id, vgs125mOhm @ 16A, 10V
Gate charge (Qg) (Max) @ vgs70 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds2500 pF @ 100 V

Product details

650 V CoolMOS N-channel in a full-pack TO-220

The full-pack moulding isolates the backside tab, so no insulating pad or washer is needed when bolting it to a heatsink — a real time-saver on the assembly line and one fewer thermal interface to budget.

Infineon has marked the IPA60R125CPXKSA1 as NRND. Existing BOMs should plan for a replacement before supply tightens.

That is moderate for a 650 V, 125 mOhm device — the driver does not need to be a monster, but the 70 nC still demands a gate-drive current in the ampere range if you are switching above 100 kHz.

Thermal and mounting

Maximum power dissipation is 35 W at case temperature. The TO-220 Full Pack (PG-TO220-FP) package has no exposed metal tab — the plastic encapsulant covers the back, so the thermal path goes through the plastic to the heatsink. That raises the thermal resistance compared to a standard TO-220, so derate the dissipation accordingly. The through-hole leads are a straightforward hand-solder or wave-solder fit for single-sided or double-sided boards.

Frequently asked questions

Is IPA60R125CPXKSA1 obsolete?

It is not yet formally discontinued, but Infineon is phasing it out. Existing designs should plan for a replacement; new designs should avoid it.

What is the best replacement for IPA60R125CPXKSA1?

Infineon has not published an official successor for the IPA60R125CPXKSA1. Look at current CoolMOS C7 or P7 series parts with a 650 V rating and similar Rds(on) in the TO-220 Full Pack package. Check the gate charge and capacitance curves to confirm switching performance matches your design.