Skip to main content
Log in
Infineon Technologies IPA50R520CPXKSA1 — Discrete Semiconductors

Infineon IPA50R520CPXKSA1 CoolMOS N-Ch 500V MOSFET, 520mOhm

MPNIPA50R520CPXKSA1
Obsolete

Infineon CoolMOS™ IPA50R520CPXKSA1 N-channel MOSFET, 500 V Vdss, 7.1 A Id, 520 mOhm Rds(on) at 10 V, 17 nC Qg, TO-220-3 Full Pack, -40 to 150 °C.

$1.5900Ref. price · indicative, final on quote
Infineon Technologies IPA50R520CPXKSA1 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IPA50R520CPXKSA1 specifications
ParameterValue
SeriesCoolMOS™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage500 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C7.1A (Tc)
Power dissipation66W (Tc)
Operating temperature-40°C ~ 150°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id3.5V @ 250µA
Rds on (Max) @ id, vgs520mOhm @ 3.8A, 10V
Gate charge (Qg) (Max) @ vgs17 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds680 pF @ 100 V

Product details

500 V CoolMOS in a full-pack TO-220 — what this part was designed for

The Infineon IPA50R520CPXKSA1 is a 500 V N-channel CoolMOS power MOSFET in a TO-220 Full Pack through-hole package. It belongs to Infineon's CoolMOS series, a family optimized for high-voltage switching with low gate charge and fast body diode recovery.

Infineon no longer manufactures this specific order code in volume.

The 500 V Vdss rating places this MOSFET squarely in the offline primary-side switching arena — flyback, forward, half-bridge, and PFC boost stages up to about 250 W output. The 520 mOhm Rds(on) at 10 V gate drive sets the conduction loss: at 3.8 A the dissipation is roughly 7.5 W, which the 66 W package power rating can handle with adequate heatsinking. Input capacitance is 680 pF at 100 V drain-source, which keeps the switching node capacitance manageable for clean turn-on and turn-off edges.

Package and mounting — the full-pack advantage

The TO-220 Full Pack (PG-TO220-3-31) is a fully isolated through-hole package. This simplifies assembly and reduces thermal resistance in the mounting stack. The through-hole mounting suits point-of-load boards and power modules where mechanical robustness matters over board density.

Frequently asked questions

Is the IPA50R520CPXKSA1 obsolete?

Yes, the IPA50R520CPXKSA1 carries an Obsolete product status. Infineon has discontinued this specific order code. For replacement options, look at the CoolMOS CP or C7 series in the same TO-220 Full Pack package, verifying Rds(on) and gate charge for your switching frequency.

What is the maximum drain current of the IPA50R520CPXKSA1?

The continuous drain current is rated at 7.1 A at a case temperature of 25 °C. This is a package-limited rating; actual usable current depends on heatsinking and switching losses in your application.