600 V, 3 A fast recovery for automotive power stages
The STTH3L06UFY is a 600 V, 3 A standard fast recovery diode in the SMBflat (DO-221AA) surface-mount package, part of STMicroelectronics' automotive-grade STTH series qualified to AEC-Q101. It is designed for continuous conduction and hard-switching rectification in DC-DC converters, flyback clamp circuits, and freewheeling paths where reverse recovery speed directly impacts switching loss.
70 ns trr and forward drop at rated load
Reverse leakage is specified at 3 µA maximum at 600 V reverse bias — a low figure that confirms the planar junction process holds its blocking voltage without significant leakage-induced thermal runaway at high ambient temperatures.
Automotive temperature grade and package fit
The SMBflat package (DO-221AA) is a low-profile, flat-lead variant of the standard SMB — the lead bend is flush with the package body, which reduces the mounted height and improves solder-joint inspection access compared to a gull-wing SMB. The ECOPACK®2 designation confirms the molding compound is halogen-free and antimony-free per the STMicroelectronics green-packaging standard.