The STPS41H100CGY-TR is an automotive-grade Schottky diode array from STMicroelectronics, configured as a common-cathode pair in a D²PAK surface-mount package. The AEC-Q101 qualification and 175°C maximum junction temperature target it for under-hood and powertrain applications where load-dump transients and high ambient temperatures are routine.
Forward drop and thermal budget in D²PAK
At 20 A per diode the 800 mV Vf sets a 16 W conduction loss floor per die. The 10 µA reverse leakage at 100 V is a room-temperature figure; leakage doubles roughly every 10°C above 25°C, so at 125°C junction the leakage contribution to self-heating becomes significant.