100 V, 10 A Schottky — the automotive rectifier choice
The STPST10H100SFY is an STMicroelectronics Schottky rectifier rated at 100 V reverse voltage and 10 A average forward current, packaged in a TO-277A (SMPC) surface-mount case. Its 700 mV forward drop at 10 A and 26 µA reverse leakage at rated Vr are the parametric anchors for conduction and standby loss in the BOM.
Automotive grade — AEC-Q101 and 175 °C junction
AEC-Q101 qualification and a 175 °C maximum junction temperature put this part in the under-hood automotive tier — alternator rectification, DC-DC converters, and reverse-battery protection where the ambient under the bonnet exceeds 125 °C. The fast recovery characteristic (< 500 ns, > 200 mA) keeps reverse-recovery loss low in hard-switched topologies.
Package and footprint — TO-277A (SMPC)
Surface-mount TO-277A (SMPC) with three power pads — the centre pad is the cathode and the primary thermal path.
Active product status per STMicroelectronics. The ECOPACK2 series designation means the part is RoHS compliant and halogen-free per ST's material declaration.
