PDF datasheet of 101 KB for the 40CTQ150, listed under schematics. The CTQ series covers dual common-cathode Schottky rectifiers, and the 150 code points to a higher voltage grade within that family. The document includes pinout, forward voltage curves and package outline. Use it when checking a rectifier on the secondary side of a switching supply, identifying the common cathode tab and comparing candidate replacements for voltage, current and package compatibility.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.