60 V, 10 A Schottky pair in D²PAK — what you need to know
The STPS20SM60CG-TR is a dual Schottky rectifier from STMicroelectronics, configured as a common-cathode pair in a single D²PAK package. Forward voltage drop is specified at 645 mV at 10 A, which keeps conduction losses manageable in a 10 A load path. The fast recovery characteristic — under 500 ns at currents above 200 mA — suits it for switching power supplies and output rectification stages where Schottky's low Vf and fast turn-off reduce switching losses.
STMicroelectronics lists the STPS20SM60CG-TR as obsolete.
645 mV forward drop — thermal design matters
At 10 A per diode, 645 mV forward drop produces about 6.5 W of dissipation per die. The common-cathode configuration means both diodes share the same tab, so the total heat load from both channels must be accounted for in the heatsink design.