Dual Schottky in a flat thermal package
The Vishay V10K100C-M3/H is a dual Schottky rectifier with a common-cathode configuration, rated for 100 V reverse voltage and 3.9 A average rectified current per diode. The 690 mV forward voltage drop at 5 A keeps conduction losses manageable in a 3.9 A per-diode design.
Package and thermal path
Housed in an 8-PowerTDFN package with the Vishay FlatPAK (5x6) footprint, the device is designed for surface-mount assembly. The large exposed pad under the package conducts heat to the PCB copper plane — the thermal resistance depends on the pad size and via array, not just the package itself. The dual-diode layout in a single package saves board space compared to two discrete SOD-123 or SMA diodes, and the common-cathode pinout is standard for center-tapped rectifier stages in automotive DC-DC converters and alternator freewheeling circuits.
Switching speed and reverse leakage
Classified as Fast Recovery (trr ≤ 500 ns at IF > 200 mA), the V10K100C-M3/H is not an ultrafast or SiC diode — it is a trench Schottky with low stored charge, suited for switching frequencies in the tens of kHz rather than hundreds of kHz. The 400 µA reverse leakage at 100 V is typical for a 100 V Schottky at 25°C; leakage doubles with temperature, so the hot leakage at 125°C will be higher and should be budgeted into the thermal design.