What this SiC Schottky brings to the power stage
The Infineon AIDK08S65C5ATMA1 is a 650 V, 8 A silicon carbide Schottky diode from the CoolSiC™ Automotive series, qualified to AEC-Q101. Its zero reverse recovery time — no stored charge, no recovery tail — eliminates the switching loss term that dominates in hard-switched PFC, boost, and DC-DC converters. The 175 °C maximum junction temperature gives headroom for under-hood and high-ambient automotive environments where a silicon ultrafast would need aggressive derating or active cooling.
Zero trr — what it means for the switching loop
The 0 ns reverse recovery time eliminates the stored-charge recovery spike that a silicon ultrafast diode would produce in a continuous-conduction-mode PFC stage.
Package and mounting — D²Pak (TO-263) on an automotive-grade footprint
The PG-TO263-2 package (D²Pak, 2 leads plus tab) is a standard surface-mount power package. The large tab is the cathode and carries the main thermal path.
Lifecycle and sourcing
Infineon lists it as current-production in the CoolSiC™ Automotive portfolio. For a BOM line that needs a 650 V, 8 A SiC Schottky with AEC-Q101 qualification, this part is a straight-in spec.
