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Infineon Technologies SPA08N50C3XKSA1 — Discrete Semiconductors

Infineon SPA08N50C3XKSA1 CoolMOS N-Ch MOSFET, 560 V, 7.6 A

MPNSPA08N50C3XKSA1
Obsolete

Infineon CoolMOS™ N-Channel MOSFET, SPA08N50C3XKSA1, 560 V Vdss, 7.6 A continuous drain, 600 mOhm Rds(on) at 10 V, TO-220-3 Full Pack, -55°C to 150°C junction temperature.

$1.7400Ref. price · indicative, final on quote
Infineon Technologies SPA08N50C3XKSA1 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

SPA08N50C3XKSA1 specifications
ParameterValue
SeriesCoolMOS™
FET typeN-Channel
MountingThrough Hole
Drain to source voltage560 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C7.6A (Tc)
Power dissipation32W (Tc)
Operating temperature-55°C ~ 150°C (TJ)
PackageTube
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3 Full Pack
Vgs(th) (Max) @ id3.9V @ 350µA
Rds on (Max) @ id, vgs600mOhm @ 4.6A, 10V
Gate charge (Qg) (Max) @ vgs32 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds750 pF @ 25 V

Product details

560 V CoolMOS in a full-pack TO-220 — what you are working with

Housed in a TO-220-3 Full Pack, the plastic body isolates the mounting tab electrically — a practical advantage when you are bolting it to a grounded heatsink without an insulating pad.

Obsolete — sourcing the SPA08N50C3XKSA1 now

Infineon lists the SPA08N50C3XKSA1 as Obsolete. That means availability is opportunistic: you cannot place a factory order or book a last-time buy.

Gate charge and capacitance — switching budget

The total gate charge is 32 nC at a 10 V gate drive, with an input capacitance of 750 pF measured at 25 V Vds. For a 100 kHz hard-switched converter, the gate-drive power loss is roughly Qg × Vgs × fsw — about 32 mW per switch at 10 V drive — which is manageable with a standard driver. The 750 pF input capacitance also means the driver sees a moderate capacitive load; rise and fall times will be clean with a 1 A to 2 A gate-drive stage.

Frequently asked questions

Where can I buy SPA08N50C3XKSA1?

This part is obsolete, so it is not available through franchised distribution for new factory orders. We source it through independent channels — surplus stock, overstock, or broker inventory. Submit an RFQ with your target quantity and price; we will confirm availability and current pricing at quote time.

Is SPA08N50C3XKSA1 obsolete?

Yes, Infineon has marked the SPA08N50C3XKSA1 as Obsolete.

What is the difference between SPA08N50C3 and SPA08N50C3XKSA1?

The SPA08N50C3XKSA1 is the specific ordering code variant of the base SPA08N50C3. The difference is typically in packaging, shipping quantity, or regional ordering configuration — the silicon and electrical ratings are the same. Both are obsolete.

Can SPA08N50C3XKSA1 be used as a replacement for SPP08N50C3?

The SPP08N50C3 is a DPAK (TO-252) surface-mount version of the same CoolMOS C3 die, while the SPA08N50C3XKSA1 is a TO-220 Full Pack through-hole part. Electrically they share the same 560 V Vdss and similar Rds(on) and current ratings, but the packages are not pin-compatible. You cannot drop one onto the other's PCB footprint without a layout change.