The STPSC20H12CWY is a 1200 V, 10 A per diode silicon carbide Schottky rectifier in a common-cathode pair, housed in a TO-247-3 through-hole package. The SiC Schottky technology delivers zero reverse recovery time (trr = 0 ns), which eliminates the switching loss tail that plagues silicon ultrafast diodes in hard-switched topologies like boost PFC and traction inverters.
Zero recovery time — switching loss advantage
The zero reverse recovery time means the diode does not store minority carriers during forward conduction, so there is no reverse current spike when the voltage polarity reverses. This directly reduces turn-on loss in the companion MOSFET or IGBT and allows higher switching frequencies without thermal penalty. Reverse leakage is 60 µA at the rated 1200 V blocking voltage. The low leakage at high voltage is a SiC advantage — it keeps standby losses minimal in high-voltage bus applications.
Automotive-grade sourcing and lifecycle
The series is designated Automotive, AEC-Q101, ECOPACK®2, which means the part is RoHS-compliant and free of conflict minerals per the ECOPACK®2 definition.
Package and mounting — TO-247-3 common-cathode
The TO-247-3 through-hole package provides a large copper tab for heatsinking — the common-cathode configuration means the tab is at the cathode potential, simplifying thermal interface design. The 0.50 mm pitch of the three leads is standard for TO-247, and the through-hole mounting suits high-current power stages where board-level thermal management relies on a heatsink bolted to the tab.