Download the YS512A datasheet PDF.
This datasheet also includes the YS505A variant, as both parts are published together in a single manufacturer document.
AC-DC Power Supplies PCB Mount type Ordering information YS5 Y S 5 05A
1234 1Series name R 2Single output
3Output wattage 4Output voltage MODEL MAX OUTPUT WATTAGE[W] DC OUTPUT YS505A 5.0 5V 1.