10 A Schottky in a thermally isolated TO-220
The RBR20T60ANZC9: It comes as a 1-pair common cathode configuration in the TO-220FN package, which is a full-pack (isolated tab) variant of the standard TO-220 — the metal tab is electrically isolated, so no insulating pad or washer is needed between the diode and the heatsink.
Forward drop and reverse leakage — the thermal trade-off
At 10 A forward current the typical Vf is 640 mV — this is the conduction loss floor. For a 10 A average current in a 50% duty-cycle rectifier, the forward power dissipation is roughly 3.2 W per diode, and the junction temperature limit is 150 °C. Reverse leakage at the full 60 V blocking voltage is 400 µA — Schottky leakage is temperature-sensitive and roughly doubles every 10 °C above 25 °C, so at 125 °C junction the leakage current can dominate the thermal budget in a lightly loaded standby circuit. The fast recovery speed (≤ 500 ns, > 200 mA Io) means the diode switches off quickly enough for line-frequency and moderate switching power supplies — the stored charge is low, so reverse-recovery losses are small compared to a standard PN diode at the same current.
Board-fit and thermal integration
Through-hole mounting in the TO-220-3 Full Pack (TO-220FN) means the three leads are 0.100-inch pitch, compatible with standard 0.100-inch header footprints on a 1.6 mm PCB. The full-pack tab has no exposed metal — the heatsink interface is the epoxy body itself, so the thermal resistance is higher than a standard TO-220 but the mounting is simpler. The package is available in tube or cut-tape formats — tube for manual insertion or low-volume builds, cut tape for automated pick-and-place that handles through-hole parts with a tape feeder.