800 V peak reverse — headroom for line-powered supplies
The DF1508S-E3/77: The DF1508S-/77: The DF1508S-/77 is a Vishay single-phase bridge rectifier rated for 800 V peak reverse voltage and 1.5 A average rectified current. That 800 V rating gives comfortable margin on a 240 VAC line — typical peak is 340 V, so you have over 2× headroom for mains transients without avalanche stress.
Forward drop and thermal budget in a small SMD body
Forward voltage is 1.1 V maximum at 1.5 A. In the DFS package with gull-wing leads, the heat path is through the copper pads.
Vishay lists the DF1508S-/77 as Active with ROHS3 compliance.
Rework and footprint notes
The DFS package has gull-wing leads — the leads are visible and probe-able, which makes post-reflow inspection straightforward.
