Zero trr — what it buys the switching stage
The IDM10G120C5XTMA1 is an Infineon CoolSiC™+ silicon carbide Schottky diode rated for 1200 V reverse voltage and 38 A average rectified current. Its defining characteristic is zero reverse recovery time — the stored charge in a pn junction is absent, so the diode turns off the instant the current crosses zero. That eliminates the reverse-recovery spike and the associated switching loss in hard-switched topologies like PFC boost stages, LLC converters, and motor-drive freewheel paths.
Thermal and package realities for the layout
The forward voltage drop is 1.8 V maximum at 10 A — a figure that rises with junction temperature, so the copper pad area under the tab sets the thermal resistance. The 29 pF capacitance at 800 V is low enough that the switching node rings less than with a comparable ultrafast silicon diode, but the PCB layout should still minimise the loop area from the diode to the switch node and output capacitor.
Lifecycle and compliance — no LTB clock ticking
The CoolSiC™+ family is Infineon's second-generation SiC Schottky platform, so the process maturity and field history are established.