10 A, 300 V, 35 ns — the switching diode that earns its keep in automotive power stages
The STTH1003SBY-TR is a 300 V, 10 A fast-recovery epitaxial diode from STMicroelectronics, housed in a DPAK (TO-252-3) surface-mount package. Its 35 ns reverse recovery time (trr) places it squarely in the fast-recovery class — ≤500 ns, >200 mA — suited for hard-switching topologies where recovery charge losses matter.
AEC-Q101 and 175°C junction — what the automotive grade buys you
The 175°C Tj max gives headroom for the self-heating from 10 A average forward current at 1.3 Vf in a compact DPAK footprint — the thermal pad on the tab is non-negotiable for keeping junction temperature inside the limit.