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Infineon Technologies IPA60R520CPXKSA1 — Discrete Semiconductors

Infineon IPA60R520CPXKSA1 CoolMOS N-Ch MOSFET, 600 V, 6.8 A

MPNIPA60R520CPXKSA1
Obsolete

Infineon CoolMOS™ series, N-Channel MOSFET, Through Hole, TO-220-3 Full Pack, 600 V drain-source, 6.8 A continuous drain, 520 mOhm Rds(on) at 10 V, -55°C to 150°C operating temperature.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IPA60R520CPXKSA1 specifications
ParameterValue
SeriesCoolMOS™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage600 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C6.8A (Tc)
Power dissipation30W (Tc)
Operating temperature-55°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) @ vgs31 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds630 pF @ 100 V

Product details

600 V CoolMOS for flyback and PFC stages

The Infineon IPA60R520CPXKSA1 is an N-channel CoolMOS power MOSFET in a through-hole TO-220 Full Pack package.

Infineon lists the IPA60R520CPXKSA1 as obsolete. The IPA60R380CP (600 V, 380 mOhm) is a higher-current variant in the same CoolMOS CP family and shares the same TO-220 Full Pack footprint, but its Rds(on) is lower, so the thermal and drive conditions differ — verify the gate drive and switching losses against your design before substituting. Pin-compatible across the CP series in the same package.

What the 600 V rating and 520 mOhm mean for a flyback design

The 600 V drain-source rating provides adequate margin for universal-input (85–265 VAC) flyback converters, where the reflected voltage plus leakage spike typically stays under 500 V. Gate drive should be a full 10 V to achieve the rated Rds(on); at lower drive voltages the on-resistance rises significantly. The ±20 V gate-source maximum gives headroom for ringing on the gate node in hard-switched circuits.

Frequently asked questions

What is the replacement for IPA60R520CPXKSA1?

Infineon has not published an official successor for the IPA60R520CPXKSA1. The IPA60R380CP is a pin-compatible CoolMOS CP variant in the same TO-220 Full Pack package with a lower 380 mOhm Rds(on) — verify switching losses and gate drive compatibility before substituting.

Can IPA60R520CPXKSA1 be used in flyback converters?

Yes, the 600 V drain-source rating and 520 mOhm Rds(on) suit it for universal-input flyback converters up to about 30 W output, assuming adequate heatsinking and a 10 V gate drive.