Datasheet-style PDF of 60.5 KB for the 1SS154, filed under schematics. The name also carries the tokens BA and sot23, the latter indicating the SOT-23 surface-mount package. The meaning of BA is not stated, so it may be a marking or variant code. Toshiba's 1SS prefix denotes small-signal switching diodes. Use the sheet to confirm which SOT-23 pins carry the diode and to match the marking code on the board. It also helps you compare ratings before substituting another part. Any PDF reader opens it.
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.
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