The S1AF to S3AF SMAF series are surface-mount high-power rectifier diodes housed in an industry-standard SMAF package. They offer three current ratings, covering 1A, 2A, and 3A, corresponding to the S1AF, S2AF, and S3AF models. They offer a reverse voltage range of 50V to 1000V and can continuously deliver the nominal rectified current even at 125°C.
They offer peak surge current capabilities of 30A, 50A, and 80A, respectively. Glass passivation ensures a typical forward voltage drop of 1.1V and a reverse leakage current of 5μA. The entire series is EU RoHS-compliant, and the ultra-thin 1.2mm package and lightweight 27mg design significantly enhance power density.
With a low thermal resistance of 50°C/W and an operating temperature range of -55°C to +150°C, they are suitable for half-wave rectification applications with resistive or inductive loads. A 20% rated current derating is required for driving capacitive loads.
It has passed MIL-STD-750 military standard welding certification and has a junction capacitance range of 15pF to 32pF, providing efficient and reliable rectification solutions for industrial power systems, electric vehicle electronic equipment and high-density AC-DC conversion modules.