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Infineon Technologies IDW20G120C5BFKSA1

Infineon IDW20G120C5BFKSA1 SiC Schottky Diode, 1200V, 31A

MPNIDW20G120C5BFKSA1
End of Life

Infineon CoolSiC™+ IDW20G120C5BFKSA1, SiC Schottky diode, 1 Pair Common Cathode, 1200 V, 31 A average rectified per diode, 1.65 V forward voltage, Fast Recovery ≤ 500 ns, TO-247-3, Through Hole, -55°C to 175°C junction temperature.

$13.01Ref. price · indicative, final on quote
Infineon Technologies IDW20G120C5BFKSA1 datasheet (PDF)
PackagingTO-247-3
RoHSROHS3 Compliant
SeriesCoolSiC™+
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

IDW20G120C5BFKSA1 specifications
ParameterValue
SeriesCoolSiC™+
MountingThrough Hole
Voltage - DC reverse (Vr)1200 V
Voltage - forward (Vf) (Max) @ if1.65 V @ 10 A
Current - reverse leakage @ vr83 µA @ 1200 V
Current - average rectified (Io) (per diode)31A
Operating temperature - junction-55°C ~ 175°C
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTube
TechnologySiC (Silicon Carbide) Schottky
CaseTO-247-3
Diode configuration1 Pair Common Cathode

Product details

Fast recovery — what that actually means here

The spec calls out Fast Recovery ≤ 500 ns at > 200 mA. For a SiC Schottky, that recovery time is essentially the RC time constant of the junction capacitance — there is no stored minority-carrier charge to sweep out. In practice, the reverse-recovery current is near zero, which eliminates the turn-on loss spike in the MOSFET or IGBT that drives the diode. If you are replacing a silicon ultrafast recovery diode in an existing PFC design, expect the switching losses in the main switch to drop measurably, and the diode itself runs cooler because there is no reverse-recovery dissipation.

This is a current-production Infineon CoolSiC™+ part, available through independent distribution.

Frequently asked questions

Is IDW20G120C5BFKSA1 a common cathode diode?

Yes, the diode configuration is 1 Pair Common Cathode. The two anodes are on pins 1 and 3; the common cathode is on pin 2 and the tab.

What is the closest pin-compatible alternative to IDW20G120C5BFKSA1 in this component family?

Infineon offers several 1200 V CoolSiC™+ dual-diode parts in the same TO-247-3 package. The key differentiator is the current rating — this part is rated for 31 A per diode. A lower-current sibling would be the IDW10G120C5BFKSA1 (10 A per diode); a higher-current option is the IDW40G120C5BFKSA1 (40 A per diode). All share the same footprint and common-cathode pinout.