95 ns reverse recovery — the switching edge
The STTH5L06D delivers a reverse recovery time of 95 ns, which is the figure that decides whether this diode fits a 600 V fast-switching application. In a continuous-conduction-mode PFC or a hard-switched flyback at 100 kHz, that 95 ns trr keeps the recovery losses low enough to avoid heatsink upgrades.
600 V, 5 A — power envelope for PFC and SMPS
Rated 600 V reverse and 5 A average forward, this part sits in the output rectifier slot of a 300–400 W power supply or the boost diode in a single-phase PFC stage. The forward voltage is 1.3 V at 5 A, so conduction loss at full load runs about 6.5 W — budget a heatsink with a thermal resistance that keeps the junction below 175 °C.
Through-hole TO-220AC — assembly and thermal
The TO-220AC package is a through-hole part with a metal tab that bolts to a heatsink or chassis. The tab is the anode; the cathode is the centre lead. For a 5 A rectifier in a TO-220, the junction-to-case thermal path is the limiting factor — the copper pad area under the tab sets the effective RthJA. No moisture sensitivity level concern; standard wave-solder profile applies.
ROHS3 compliant per the current revision.