Second copy of the BC517 NPN Darlington transistor datasheet, rated 500 mA and 30 V according to the name, also 111 KB in PDF form. It should carry the same pin layout, package outline and electrical tables as the other copy. Technicians open it to confirm lead orientation and limits before fitting a replacement in relay drivers or other switching circuits. Because a Darlington has two junctions in series between base and emitter, expect a roughly doubled forward reading during diode tests, and compare against a known good part.
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.