Skip to main content
Log in
Infineon Technologies IPA65R045C7XKSA1 — Discrete Semiconductors

IPA65R045C7XKSA1 CoolMOS C7 N-Ch 650V 18A MOSFET

MPNIPA65R045C7XKSA1
Active

Infineon CoolMOS™ C7 series, N-Channel MOSFET, 650 V drain-source, 45 mOhm Rds(on) at 10 V, 18 A continuous drain, TO-220-3 Full Pack through-hole, -55 to 150 °C junction.

$12.7100Ref. price · indicative, final on quote
Infineon Technologies IPA65R045C7XKSA1 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

IPA65R045C7XKSA1 specifications
ParameterValue
SeriesCoolMOS™ C7
FET typeN-Channel
MountingThrough Hole
Drain to source voltage650 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C18A (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) @ id4V @ 1.25mA
Rds on (Max) @ id, vgs45mOhm @ 24.9A, 10V
Gate charge (Qg) (Max) @ vgs93 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds4340 pF @ 400 V

Product details

650 V, 45 mOhm — the SMPS workhorse in a full-pack TO-220

The Infineon IPA65R045C7XKSA1 is a 650 V N-channel CoolMOS C7 superjunction MOSFET in a TO-220 Full-Pack (PG-TO220-FP) through-hole package. Input capacitance sits at 4340 pF at 400 V drain-source, which sets the miller plateau duration and the dead-time budget in a half-bridge leg.

Full-pack isolation — no extra insulator needed

The TO-220 Full-Pack (PG-TO220-FP) moulds the entire tab in epoxy, so the backside is electrically isolated. That saves a sil-pad or mica washer when bolting to a heatsink.

Infineon lists the IPA65R045C7XKSA1 as Active (current production). The CoolMOS C7 platform is mature and widely second-sourced in the sense that multiple distributors carry stock, but Infineon is the sole fab.

Frequently asked questions

What are the alternatives for IPA65R045C7XKSA1?

Within the CoolMOS C7 family, the closest parametric match is the IPA65R045C7 — same die, same Rds(on), same package. The XKSA1 suffix indicates a specific packing and reel configuration (Tube), not a different silicon. For a pin-compatible second source, look at the IPA65R060C7 (60 mOhm) if the conduction loss budget allows a slightly higher Rds(on).

Can IPA65R045C7XKSA1 be used in high-power SMPS designs?

Yes, the 650 V Vdss and 45 mOhm Rds(on) make it suitable for the primary switch in SMPS topologies up to several hundred watts — PFC boost, LLC resonant half-bridge, and flyback converters. The 18 A continuous drain rating at 25 °C case temperature gives headroom for peak currents. Just derate the 35 W power dissipation limit for the full-pack package when sizing the heatsink.