Schottky rectifier for 3 A automotive and industrial rails
The STPS340UY is a 40 V, 3 A Schottky rectifier from STMicroelectronics, qualified to AEC-Q101 for automotive use. Forward voltage is 630 mV max at 3 A. Reverse leakage is 20 µA at 40 V.
AEC-Q101 qualification and junction temperature ceiling
AEC-Q101 qualification covers automotive stress tests.
Package and footprint — SMB thermal management
The copper pad area under the cathode tab sets junction-to-ambient thermal resistance. The fast recovery characteristic (≤ 500 ns at > 200 mA) is inherent to the Schottky barrier — no reverse-recovery charge to manage, which simplifies the switching loop in DC-DC converters and freewheeling clamps.