Dual 10 A fast-recovery diode in a single TO-220
The Infineon IDP20C65D2XKSA1 packs two 650 V, 10 A fast-recovery diodes in a common-cathode pair inside a standard TO-220-3 package. Each diode handles 10 A average rectified current, and the 28 ns reverse recovery time (trr) keeps switching losses low in continuous-conduction-mode PFC stages, boost converters, and output rectifiers for switched-mode power supplies. The 175°C maximum junction temperature gives thermal headroom in compact or poorly ventilated enclosures — think motor drives, server PSUs, or industrial power supplies where the heatsink is tight.
Common-cathode pair — layout and thermal sharing
Both dice share the same cathode tab, so the TO-220-3 pinout is pin 1 (anode 1), pin 2 (common cathode / tab), pin 3 (anode 2). That single-tab connection simplifies heatsink mounting — no isolation pad needed if the heatsink is at the output rail potential. The common-cathode configuration is standard for center-tap full-wave rectifiers and dual-boost interleaved PFC stages where the two anodes connect to separate inductors or transformer windings.
For a production BOM, this means no last-time-buy scheduling or substitute qualification is needed today.